2 Circles 1 Square

andymath.com/geometry-challen...
I hope you guys like this one, and the several others I have on this page!

Пікірлер: 3 100

  • @mikesmith-fw9nc
    @mikesmith-fw9nc6 ай бұрын

    I was never good at maths. But this was a delight to watch.

  • @vitorstreetboys

    @vitorstreetboys

    6 ай бұрын

    for me is because is not me doing the hard work

  • @ast-og-losta

    @ast-og-losta

    6 ай бұрын

    If your following it and understand, your head and shoulders above most everyone else. Kudos to you;)

  • @mccrafterr

    @mccrafterr

    6 ай бұрын

    I hate doing math but i love watching other people do math xD

  • @listerofsmeg884

    @listerofsmeg884

    6 ай бұрын

    I didn't mind maths , but I could never get my head around rearranging equations

  • @y.o.2478

    @y.o.2478

    6 ай бұрын

    It's also extremely basic

  • @MattBottomly
    @MattBottomly6 ай бұрын

    I am 30+ years out of algebra, and just stumbled across this in my feed and I still watched the whole thing. That was a terrific explanation. Good teaching and very clear.

  • @rnburley

    @rnburley

    5 ай бұрын

    not going to lie, I have forgotten 90% of this.

  • @bobbuilder3414

    @bobbuilder3414

    4 ай бұрын

    Still i doesn't 😢 understand

  • @BlackDreaded

    @BlackDreaded

    4 ай бұрын

    You were so bad at algebra that you failed to understand this is geometry 😋

  • @doudi0101

    @doudi0101

    3 ай бұрын

    ​@@bobbuilder3414 what exactly didn't you understand, I can explain to you

  • @Joys_funclub

    @Joys_funclub

    3 ай бұрын

    same here

  • @WALTERRIFIC
    @WALTERRIFIC3 ай бұрын

    You lost me after “hey guys”, but I watched the whole thing.

  • @South_Van_Ilse_MTB

    @South_Van_Ilse_MTB

    3 ай бұрын

    holy shit, exact sme experience!!!!

  • @Ambettertenu

    @Ambettertenu

    3 ай бұрын

    Same

  • @LovelyMacawBird-mj7bi

    @LovelyMacawBird-mj7bi

    3 ай бұрын

    Why tho???

  • @GhPuiu

    @GhPuiu

    3 ай бұрын

    Well, now I know why this video was recommended to me

  • @prasheinranaweera276

    @prasheinranaweera276

    3 ай бұрын

    same

  • @qwelqwdjln123
    @qwelqwdjln1234 ай бұрын

    Just out of 7 years of engineering education and watching these videos reminded me of why I chose to follow this path at the first place. Don't forget guys we are not machines enjoy yourselves

  • @imad7x

    @imad7x

    4 ай бұрын

    Who's we here

  • @farrel_ra

    @farrel_ra

    4 ай бұрын

    ​@@imad7xengineer

  • @anshikarana7476

    @anshikarana7476

    4 ай бұрын

    @@imad7x That's a valid question.

  • @leightonrud66

    @leightonrud66

    3 ай бұрын

    Engineers don't do this though. Calculators and a tape measure is all you'd need for any measurements.

  • @saaheb085

    @saaheb085

    3 ай бұрын

    ​@@imad7x, we = x

  • @rilijn
    @rilijn6 ай бұрын

    I love the logic in math. When I saw the thumbnail, I couldn’t fathom a way to calculate that. 3 min and 34 seconds later it totally makes sense and it’s not even difficult math. Just logic and reasoning. Right on man!

  • @mkbismuth829
    @mkbismuth8296 ай бұрын

    x=10 is actually a fairly reasonable result, it just refers to the square which is bounded by the upper arcs of the two circles (not by their lower arcs like the original case we are dealing with) ..

  • @abhisheknanda85

    @abhisheknanda85

    6 ай бұрын

    This is precisely what I love about math. The equations end up encoding all cases that fit the constraints used in the deductions.

  • @vitec_dev3659

    @vitec_dev3659

    6 ай бұрын

    You are blowing my mind

  • @hammy2737

    @hammy2737

    6 ай бұрын

    sorry what do you mean bounded by upper arcs?

  • @Wyvern07_

    @Wyvern07_

    6 ай бұрын

    ​@@hammy2737I'm also wondering this

  • @mkbismuth829

    @mkbismuth829

    6 ай бұрын

    @@hammy2737 I mean with x=2 , the square is in touch with the outer surfaces of the two circles but with x=10 the square is touching the inner surfaces of the circles

  • @Frekspete
    @Frekspete3 ай бұрын

    Excellent work! I think another way of looking at it is to determine that the half lengths of the square is x/2, and by using the line you drew for the triangle you would quickly find that y actually is 5 - x/2, thus making the equation being: (5 - x/2)squared + (5-x) squared = 5 squared.

  • @alifahmed9309

    @alifahmed9309

    3 ай бұрын

    Yap, this approach is much easier.

  • @neopearl23

    @neopearl23

    3 ай бұрын

    Brilliant! Didn't think of it that way...

  • @knotwilg3596

    @knotwilg3596

    3 ай бұрын

    That's how I solved it too: apply symmetry, then Pythagoras, then solve a quadratic equation.

  • @shreyasmore07

    @shreyasmore07

    3 ай бұрын

    Yup I solved it like this itself😊

  • @daoudsammy9716

    @daoudsammy9716

    3 ай бұрын

    Yep ✨✨✨

  • @Dhairyasheel192
    @Dhairyasheel1924 ай бұрын

    This is why i always loved maths!!! Its logic always felt almost magical! Like anything can be explained and solved with Mathematics!!

  • @Zandezz.
    @Zandezz.6 ай бұрын

    Wow. I love how this used such simple math in combination to solve a bigger problem

  • @raidzeromatt

    @raidzeromatt

    6 ай бұрын

    Yeah it was in my suggested videos and I just laughed watching him write the steps down Last time I did geometry like this was in 8th grade so it would've taken me a minute to put all those pieces together

  • @PLF...

    @PLF...

    6 ай бұрын

    thats pretty much the point of math

  • @Flqmmable

    @Flqmmable

    6 ай бұрын

    @@raidzeromatt oH mY. you are sooo special!

  • @ZiyaB3ast

    @ZiyaB3ast

    6 ай бұрын

    ​@@raidzeromatti knew how to do all the steps too, but you have to be creative and intuitive enough to discover what should be done here. You should of tried the problem on your own first if you're that smart

  • @raidzeromatt

    @raidzeromatt

    6 ай бұрын

    @@ZiyaB3ast If you know Pythagorean and implicit functions it's just connect the dots Definitely would've taken me a minute to solve but it's not like you're being asked to find the rectangle with the largest area that will fit in that space Geometry doesn't suck until you learn derivatives

  • @dielaughing73
    @dielaughing736 ай бұрын

    Im not sure how i feel about the title of this video

  • @caseygreen1475

    @caseygreen1475

    2 ай бұрын

    bro 💀

  • @gr4n737

    @gr4n737

    Ай бұрын

    CAMER HERE TO FIND SOMEONE POINTING THIS OUT

  • @deskasandreas4504

    @deskasandreas4504

    Ай бұрын

    😅😅😅😅

  • @nayanverma6096

    @nayanverma6096

    Ай бұрын

    😂

  • @NOTaYOUTUBERRR
    @NOTaYOUTUBERRR2 ай бұрын

    Me at 2am for no reason

  • @muneebtahir4739

    @muneebtahir4739

    Ай бұрын

    I'm literally watching this at 2 am 💀

  • @NOTaYOUTUBERRR

    @NOTaYOUTUBERRR

    Ай бұрын

    Replying at 2am

  • @mrhankey20
    @mrhankey204 ай бұрын

    I haven't done this since high school over 20 years ago but I was able to keep up with you and it all made sense. Well done!

  • @nmaogs
    @nmaogs6 ай бұрын

    A simpler solution (what I did) is to draw a perpendicular from the base to the point where the circles meet, so y = 5 - x/2. Then the Pythagoras and quadratic method is just the same but there’s only one variable

  • @nicholasfactor

    @nicholasfactor

    5 ай бұрын

    This is what i originally did in my head it’s so much simpler.

  • @ValiTanasi

    @ValiTanasi

    5 ай бұрын

    Exactly how I thought of it too

  • @sebastianmenconi6853

    @sebastianmenconi6853

    5 ай бұрын

    That's how I solved by head yep

  • @shoaibakhtar2476

    @shoaibakhtar2476

    4 ай бұрын

    How bro ? 😊

  • @karlacvalencia2409

    @karlacvalencia2409

    4 ай бұрын

    Could you explain it with more details? I didnt understand why /2

  • @HoSza1
    @HoSza16 ай бұрын

    Choose a coordinate system such that its origin is at the center of the bottom edge of the red square, y and x axes point towards up and to the right respectively. Since the top right corner (x,y) is on the circle we can write (x-r)²+(y-r)²=r² and if that point (and its mirror image on the other circle) would be moved a bit on the circle, it would distort the red square into a rectangle. The only way it will remain square is when y=2x. Substitute y into the equation of the circle and solve for x: (x-r)²+(2x-r)²=r². x²-2rx+r²+4x²-4rx+r²=r². 5x²-6rx+r²=0. Solutions: x=r and x=r/5. Reject the first and the area is A=2xy=4x²=4r²/25=4

  • @MouhibBayounes

    @MouhibBayounes

    6 ай бұрын

    That's how i found it 😂

  • @TheGamingPalace123

    @TheGamingPalace123

    6 ай бұрын

    Bruhh😥😥my brain cells are gonna diyy💀💀💀

  • @LEONLOVESMUSIC

    @LEONLOVESMUSIC

    6 ай бұрын

    ​@@TheGamingPalace123don't worry it's not that hard! Trust me.

  • @sutirthjha4539

    @sutirthjha4539

    6 ай бұрын

    ​@@TheGamingPalace123maybe you haven't studied coordinate geometry yet, otherwise it is pretty easy

  • @pikminman13

    @pikminman13

    6 ай бұрын

    While I didn’t get the answer, I was trying to do it in my head, and this was my approach. I just missed one step.

  • @zmchenaustin
    @zmchenaustin3 ай бұрын

    Came here for the title, still waiting for the joke

  • @martnava1661

    @martnava1661

    3 ай бұрын

    2 circles, one square walk into a bar. the square hits his head on the bar and says ouch the circle rolls around on the floor laughing

  • @ProjectileGrommet

    @ProjectileGrommet

    2 ай бұрын

    Two circles go to the bar without a square He’s never a round

  • @azDanqs

    @azDanqs

    Ай бұрын

    2g 1c

  • @phineasferb9128

    @phineasferb9128

    Ай бұрын

    the fact that females are represented as circles in pedigrees makes this even funnier

  • @mcc-us
    @mcc-us2 ай бұрын

    I always find the little tricks used to determine side lengths so fun. Good Job!

  • @disparato
    @disparato6 ай бұрын

    I'm 44 years old, Maths was my subject in school and this came in my feed, I watch the whole thing and was genuinely rivetted. Andy you are a gift my friend

  • @ratedaron

    @ratedaron

    6 ай бұрын

    Lair 🤮

  • @youcefsiouda

    @youcefsiouda

    6 ай бұрын

    ​@@ratedaron No, math is cool 😎

  • @rawbeefking866

    @rawbeefking866

    6 ай бұрын

    @@ratedaronmath is the best subject

  • @zaidtalib4513

    @zaidtalib4513

    6 ай бұрын

    @@ratedaron nice spelling bro

  • @TestTubeBaba

    @TestTubeBaba

    6 ай бұрын

    ​​@@ratedaron Lair. Yup. Get inside the one you emerged from.

  • @handledav
    @handledav6 ай бұрын

    2 Circles 1 Square

  • @dot-ln7jc

    @dot-ln7jc

    6 ай бұрын

    lmao

  • @theonewhocaredandasked9126

    @theonewhocaredandasked9126

    6 ай бұрын

    2 gi-

  • @rjayme5
    @rjayme54 ай бұрын

    For a general solution, using: "r" for Radius; "L" for lenght of the square side; the triangle drawn at 00:26, Use sin^2+cos^2=1. Sin=(r-L/2)/r ; Cos=(r-L)/r. Solving for L, you get a 2nd degree equation in which the solutions are 2r and 2r/5. As you know the side L is smaller than R, the only valid answer is 2r/5. For radius=5, L becomes 2, thus the Area (L²) = 4.

  • @Vissou

    @Vissou

    3 ай бұрын

    00:38 you mean + it’s good to precise for readers that you are talking about the angle at the center of the circle of this said right triangle

  • @SH1N

    @SH1N

    2 ай бұрын

    Ffs thank you, way shorter

  • @maboh5622

    @maboh5622

    2 ай бұрын

    ok, but why didn’t you use x …lol

  • @rjayme5

    @rjayme5

    2 ай бұрын

    I feel L and r are more representative in this case, but you can use any variable you like. However, if you must always use X when solving implicit problems, I have some bad news for you… 😅

  • @johnnechaev1550

    @johnnechaev1550

    Ай бұрын

    @@rjayme5 😂duuude😂

  • @beatrix4519
    @beatrix45194 ай бұрын

    that was exciting! I no longer have the brain for hard math stuff like this but watching people solve problems like this is very fun thanks for bringing some joy to my night

  • @sosven1115
    @sosven11156 ай бұрын

    I like this reference in the title

  • @Solotocius

    @Solotocius

    6 ай бұрын

    Trauma

  • @KatzRool

    @KatzRool

    6 ай бұрын

    no

  • @protaeruayjing98

    @protaeruayjing98

    6 ай бұрын

    Yes

  • @arpit2859

    @arpit2859

    6 ай бұрын

    Anyone wants chocolate ice cream?

  • @protaeruayjing98

    @protaeruayjing98

    6 ай бұрын

    @@arpit2859 👯🥤🎱💩💩

  • @raghav3914
    @raghav39146 ай бұрын

    You reminded me of my childhood. Those were some of the most tensed moment preparing for competitive exams.

  • @erinc9672
    @erinc96724 ай бұрын

    Sooooo gooooddddd!!! Great explanation, so simple, thank you! We had fun with this as a family 😊

  • @matthewbowers88
    @matthewbowers884 ай бұрын

    Even though I just watched you do it, I still dont know how you did it. I'm slowly starting to understand bits. You're significantly better than any teacher I ever had.

  • @peterboneg
    @peterboneg6 ай бұрын

    To understand why it's a whole number, note that the triangle you formed first is the 5,4,3 pythagorean triple. We just require that the hypotenuse minus the shorter side is twice the hypotenuse minus the longer side, which of course it is. 5-3 gives the edge of the square.

  • @adamesd3699

    @adamesd3699

    6 ай бұрын

    Yeah, that is much faster.

  • @doormat1

    @doormat1

    6 ай бұрын

    That was my thought. As soon as he did the 3,4,5 right triangle I was expecting a quick resolution. Then he did polynomial math and I was like wait, why?

  • @hellowill

    @hellowill

    6 ай бұрын

    @@doormat1 hard same. Reminds me of people that don't realise the hypotenuse on a 45-45-90 triangle is just x*√2.

  • @Pawn-Sac

    @Pawn-Sac

    6 ай бұрын

    how do you know its a 3-4-5 triangle though

  • @happy_labs

    @happy_labs

    6 ай бұрын

    @@doormat1 He hadn't established it was a 3,4,5 triangle though. It's not obvious to me why that would be the case, although I'd imagine there is a geometry theorem that could have been called on to show that

  • @cy4n_knight_q8
    @cy4n_knight_q85 ай бұрын

    It's really weird feeling that you enjoy looking at math being solved while not the biggest fan of math. Kinda miss when I used to solve those in college

  • @guyosborn615
    @guyosborn6154 ай бұрын

    Thank you for being so much quicker than many of the fun maths channels (though i do rate Numberphile too). Subscribed.

  • @haydenhuss8758
    @haydenhuss87582 ай бұрын

    You just blew my mind, man. I freakin’ love math!

  • @marcusambler3543
    @marcusambler35436 ай бұрын

    At 1:03 , we can define 5 + 5 = 2y + x , which gives us y = 5 - x/2 From here, you can use this result in Pythagoras, (5-x)^2 + (5 - x/2)^2 = 5^2 leading to a straightforward simplification of a quadratic giving the same results as you, 10 and 2. Personally I think this method is easier as you don’t have to deal with y, since you already know what it is, and it is quicker. Although, we all get the same answer in the end.

  • @vincevd

    @vincevd

    6 ай бұрын

    Used this solution aswell, think it's the most straight forward

  • @varun9733

    @varun9733

    6 ай бұрын

    Could you explain further please I didn't get it like how did you come up with 5+5 = 2y+x like did you took the radius and length of square or like what?

  • @BocusVeLucy

    @BocusVeLucy

    6 ай бұрын

    @@varun97331:52

  • @varun9733

    @varun9733

    6 ай бұрын

    ​@@BocusVeLucy So it's the same theory alright.

  • @craigauty8874

    @craigauty8874

    6 ай бұрын

    My issue is when he gets to the quadratic equation he says just factor it, it's -10 and -2. That's fine in this simple example but just use the quadratic formula as your proof.

  • @SAlam-bo3ww
    @SAlam-bo3ww6 ай бұрын

    beautiful problem, your passion is infectious! lovely video

  • @solidUntilLiquidBeforeGas
    @solidUntilLiquidBeforeGas4 ай бұрын

    Really enjoyed this video, Andy - awesome! I had to roll up my sleeves, brush off engineering degree from decades ago and give it a shot! I happened to solve it with a much simpler approach. If the x-y axis is drawn right between the circles and at the bottom of the circles. Equation of the circle (x-5)^2 + (y-5)^2 = 25 must satisfy the point (a/2, a) on it, where "a" is the side of the square. Plugging this point into the equation for circle and solving for "a" will lead to same two values Andy reached (10 and 2). Bam!

  • @thomasvanassche7108

    @thomasvanassche7108

    4 ай бұрын

    I did it like this as well, but it became painfully clear how long ago it was i last took a math course. About 20 highschool algebra mistakes later, i got there though ;)

  • @dipanshumaini8331
    @dipanshumaini83313 ай бұрын

    I wish we had teachers like him in our school days . Simple explanation, to the point without any complexity 👏🏻

  • @lpi3

    @lpi3

    3 ай бұрын

    Every teacher is exactly like him. You was too small to understand

  • @yureino

    @yureino

    3 ай бұрын

    Dont blame the teacher, you were just not paying attention.

  • @Sara-ts2pf

    @Sara-ts2pf

    3 ай бұрын

    he's explaining what he's doing in the most plain way possible... this is like the most baseline "teaching" ever, there's not much learning of things you can apply to other problems here (i.e strategies for setting up your solution)

  • @juanospitia

    @juanospitia

    3 ай бұрын

    Dude, if your teacher actually explained like that, you'd DESPISE them

  • @shabirparwaz
    @shabirparwaz6 ай бұрын

    This video made me feel good about myself. It has been more than 15 years since I graduated high school, but basic algebra still sticks with me and this is exactly the solution I would’ve gone with. Thanks for a delightful video.

  • @PSYCH_IITR

    @PSYCH_IITR

    4 ай бұрын

    I'm 𝗰𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗶𝗻𝗴 you to solve this 𝗺𝗮𝘁𝗵 𝗽𝗿𝗼𝗯𝗹𝗲𝗺 and if you will be able to solve this i'll give you money as a reward. 𝗩𝗶𝗱𝗲𝗼 𝗹𝗶𝗻𝗸-:kzread.info/dash/bejne/m3qClqaGmJu9pNI.htmlfeature=shared

  • @RunstarHomer
    @RunstarHomer6 ай бұрын

    I solved it by considering the horizontal line at the bottom to be the x-axis, and the vertical line between the two circles to be the y-axis, so that half of the red square is in the first quadrant. Then the top right vertex of the square can be the point (x,y). x is half the side length of the square and y is the whole side length, so we have y=2x. Substituting this into the equation of the right circle (x-5)^2+(y-5)^2 = 25 yields a quadratic that can be solved yielding x=1 and x=5, the former corresponding to a square with side length 2 and area 4.

  • @tiano9200
    @tiano92004 ай бұрын

    Bro that was insane. Keep it up, love math.

  • @adammarley5616
    @adammarley56162 ай бұрын

    This was delightful to watch. Keep it up!

  • @10054
    @100546 ай бұрын

    Video title is genius.

  • @Schadock_Magpie
    @Schadock_Magpie6 ай бұрын

    You can also put the origin at the center of the bottom side of the red square and look at the coordinate of top right corner, we have: 1) y=2x from the square 2) (x-5)²+(y-5)²=5² from the right circle equation Putting 1 into 2, we get : (x-5)²+(2x-5)²=25 that give 5x² - 30x + 25 = 0 and then x² - 6x + 5 = 0. 1 is pretty obvious as a root, so it factor in (x-1)(x-5)=0 and since x=5m doesn't fit we have x=1 Right half of red square is 1*2=2m² so answer is 4m² It avoid a bunch of square roots and pythagore

  • @gregjones4870

    @gregjones4870

    6 ай бұрын

    Your mathematical reasoning is sound. Thank you!

  • @pedro92073

    @pedro92073

    6 ай бұрын

    Exactly what I thought. I am surprised I can still easily do an exercise like this.

  • @hentype

    @hentype

    6 ай бұрын

    I did the same starting with a cartesian coordinate and deriving y=2x.

  • @Yue-vh5zg

    @Yue-vh5zg

    6 ай бұрын

    Why are you using coordinates in a problem solving problem? Also is it just me or coordinates are far too complicated for its simple concept?

  • @asifmorshed9956

    @asifmorshed9956

    6 ай бұрын

    ​@@hentypeactually i didn't understand the Y=2X part.... Can you explain a bit?

  • @lawrencelawsen6824
    @lawrencelawsen6824Ай бұрын

    Excellent! I love this channel!

  • @Windex314
    @Windex3144 ай бұрын

    I love watching your videos. High school me would’ve devoured these problems but now I have so many things to think about that I can’t even focus and think properly. Yay age.

  • @maxwellsimon4538
    @maxwellsimon45386 ай бұрын

    the amount of suffering I've had from every time I forget that I can just make quadratic equations is immeasurable. Great solution

  • @hammy_and_britney
    @hammy_and_britney6 ай бұрын

    Came for the title, stayed for the math

  • @flovahkiin5783

    @flovahkiin5783

    6 ай бұрын

    Only few will understand the title

  • @ammarkhan6883
    @ammarkhan68834 ай бұрын

    I love that slight smirk throught the entire video.

  • @rlittlefield2691
    @rlittlefield26913 ай бұрын

    Love your videos Andy!

  • @thereddestsuninthesky
    @thereddestsuninthesky6 ай бұрын

    This guy knew what he was doing with the title

  • @krabkrabkrab
    @krabkrabkrab6 ай бұрын

    Try the equation for circle with origin at the lower point of a square that encapsulates the circle. The equation is (x-5)^2+(y-5)^2=25. But from the small square, you also know that at the point of contact of that square with the circle, y=2x. Simultaneous solution is x=1,y=2 or x=5,y=10. If x=1, then y=2, it is the square's side, so area is 4.

  • @jamello29

    @jamello29

    5 ай бұрын

    This is the solution I used, took me a minute to get there though!

  • @_Nulupu

    @_Nulupu

    2 ай бұрын

    Esattamente. 1 minuto. Cambio di riferimento nell'equazione del cerchio. Change of reference system. Change is always good😊

  • @varshasjain9383
    @varshasjain93835 ай бұрын

    You are awesome 👍👍👍 Thanks for giving clarity...not some fussie fussy explanation...

  • @giridharg82
    @giridharg824 ай бұрын

    Very clear explanation. Thumbs up.

  • @veryseriousperson_
    @veryseriousperson_6 ай бұрын

    The title of the video reminded me of some things...

  • @rizwansmazum9476
    @rizwansmazum94766 ай бұрын

    You suprise me in every video

  • @user-gp6vf9lu4k

    @user-gp6vf9lu4k

    6 ай бұрын

    I love ❤

  • @user-gp6vf9lu4k

    @user-gp6vf9lu4k

    6 ай бұрын

    Don't you Like

  • @RaindropsSunshine
    @RaindropsSunshine3 ай бұрын

    Honestly, it is very exciting. Thanks :)

  • @GreaseAndGravel
    @GreaseAndGravel4 ай бұрын

    Wow, that was satisfying to watch! Maths is awesome :)

  • @phucwang3882
    @phucwang38825 ай бұрын

    this reminded me with our 8grades math. so memorable

  • @Khigha87
    @Khigha875 ай бұрын

    What a delight. I was sceptical about taking math as a 2nd major in my comm sci degree, this reminded me why I loved that ish! I'm going to do it!

  • @miatansen7640
    @miatansen76403 ай бұрын

    This brought back so many memories from high school math coaching classes

  • @ravigupta8358
    @ravigupta83583 ай бұрын

    Love the way you solve the problem ♥️

  • @NasMCsmelly
    @NasMCsmelly6 ай бұрын

    I thought this was a "two girls one cup" joke in my recommended. Glad I learned something different today.

  • @yashveersingh1858
    @yashveersingh18586 ай бұрын

    2 circles 1 square ☠️☠️☠️☠️☠️

  • @xyuv6769
    @xyuv67694 ай бұрын

    such a nice approach to maths

  • @Elysia07
    @Elysia074 ай бұрын

    I don't know nothing bout math but my first thought was, this does look fun!

  • @Kingsidthesloth
    @Kingsidthesloth6 ай бұрын

    This dude made it wayyyy more complicated than it needs to be

  • @TheBiomedZed

    @TheBiomedZed

    6 ай бұрын

    please share how you would do it simply

  • @logitech4873

    @logitech4873

    6 ай бұрын

    ​@@TheBiomedZedliterally just measure it with a ruler

  • @Kingsidthesloth

    @Kingsidthesloth

    6 ай бұрын

    @@TheBiomedZed the square Is equal on all sides so if we find one side we find them all. anyway the circle is 5 meters in its radius so is you put another line the same length vertical against the square you can pretty much tell that the square is only about 2/5 the height of 5meters meaning that the square is 2 by 2. 2x2=4 so the answer is 4 squared I hope this helped

  • @mums_poop_sock

    @mums_poop_sock

    6 ай бұрын

    ​@@Kingsidtheslothnope it's 5m squared. The square fits between the two circles with perfect symmetry because the circles are the same size right? So the circle touches the square at the 'half way point' between centre and the bottom which means it's half the radius so 2.5m height

  • @Kingsidthesloth

    @Kingsidthesloth

    6 ай бұрын

    @@mums_poop_sock I like your theory but if you watch the whole vid the answer is four squared he just did it a different way than I did

  • @gabrieliordache296
    @gabrieliordache2966 ай бұрын

    Actually, if you consider the x=10 as a possible solution, you can see that it leads to another square, which has a side along the horizontal line to which both circles are tangent, but now the square is made by the whole distance between the tangent points, and the two diameters. If you imagine the two radii in each circle moving, the two solutions reflect the two possible perfect squares which can be built so that a side is along the tangent (horizontal line): one when the x is 2 and one when the x is 10.

  • @jama211

    @jama211

    6 ай бұрын

    So cool!

  • @outerlast

    @outerlast

    6 ай бұрын

    oh nice

  • @indiankid8601

    @indiankid8601

    6 ай бұрын

    But then y will become 0. But we know that y is not zero. It is already defined so x cannot be 10. That's just a coincidential solution not real solution

  • @Vaisaakh_Nagra

    @Vaisaakh_Nagra

    6 ай бұрын

    Bro u are making a square under the table, that doesn't make sense, the square is above the table or horizontal

  • @cithria583

    @cithria583

    6 ай бұрын

    @indiankid8601 When they say solution, they are talking about solution to the quadratic equation, not the solution to the entire problem. You can use the exact same quadratic equation to solve two different problems, which is why it gives two different answers. They are only mentioning it because this explains why it results in both x=2 and x=10, not because it is complete nonsense, but because it is the solution to a different problem.

  • @ryeofoatmeal
    @ryeofoatmeal3 ай бұрын

    maths is my fave subject back in high school. I really enjoy solving this type of problems. it has been more than a decade since I left school. I missed this :")

  • @andrewbrightasingwire
    @andrewbrightasingwire4 ай бұрын

    very nice one. watching you all the way from Uganda!

  • @stathislourantos1194
    @stathislourantos11946 ай бұрын

    If θ is the angle defined by the horizontal radius of the left circle and its common point with the square, then sinθ=(5-x)/5 and cosθ=(5-x/2)/5. Then squaring both sides of the equations and adding them together and because sin^2(θ)+cos^2(θ)=1, solving for x we get x=2.

  • @AnkitAye
    @AnkitAye6 ай бұрын

    I did it through a bit of approximation. I drew an imaginary rectangle that encompasses both the circles from the outer side. Then I calculated the area of the rectangle which would be 200 meter squared, and the area of circles combined which would be π×(r)^2 = 158 (π value approx 3.14...taken so 157+a small value considered to be 1) , then we get the empty area in the rectangle without the circles which is 200-158= 42. Now if you have imagined the rectangle you already know that there are 6 different empty spaces in the figure and the ones in the corners are half of the ones in the middle. So in total there are 8 spaces as such and the ones we want are the two in the bottom centre, so 8/2 = 4, and 42/4 = 10.5 Then through extreme approximation just by looking at the figure and assuming that the square is surrounded by three triangles and a little excess curved area we can come to the conclusion that the square is about 2 triangles in area + 3 surrounding triangles + excess area, which would be 5 triangles in total and a little excess area(0.25 part ,not area in m) . So since we are concerned about only the square(2 triangles), 2/5.25 × 10.5 = 4 Now I got the answer to be exact 4(which as shown in the video is right), but if the values change in the question still I would have gotten a approx answer, which I could have rounded up to the closest whole number. And if there were options then it becomes even easier. (I was in the train and couldn't get my notebook so had to resort to approximation. Also the method shown in the video is very good, I'll remember that. Also I speculate that since I got the answer exact right maybe the ratio for the area between those two circles might be actually somewhere around 2/5.25 for all circles?, Idk but I'll look into it seems interesting.)

  • @MrBlastZone3000

    @MrBlastZone3000

    6 ай бұрын

    I did the same thing. Very cool to know someone else tried this approach as well 👍

  • @Wertyhappy27

    @Wertyhappy27

    6 ай бұрын

    i did a guess style answer too, wasnt giving up on my answer, and once he said it and it mathced, I felt good

  • @Prolute

    @Prolute

    6 ай бұрын

    If you're going for an approximate answer I don't see why you'd make it so complicated. You can easily just visualize that the 5 meter line is 2 and a half red squares in length.

  • @AnkitAye

    @AnkitAye

    6 ай бұрын

    @@Prolute that's assuming that the figures are to scale. And if you actually know what you're doing then it hardly takes some minutes to figure out in your head. But I do see that it's a lot of words for explaining such an easy approach.

  • @Prolute

    @Prolute

    6 ай бұрын

    @@AnkitAye Pretty sure the figures are to scale, they have to be for this problem to be solvable at all lol

  • @averageday
    @averageday3 ай бұрын

    Wow that was actually fun!

  • @Polar-ot9ih
    @Polar-ot9ih3 ай бұрын

    for the longest time i believed i could not do maths at all, but when i found this video i actually felt good knowing that i understood the equation and worked it out. giving me hope fr

  • @mylesmcvey1457
    @mylesmcvey14576 ай бұрын

    Another way to solve this problem is to think about the dimensions of the square as two separate functions. The base of the square starts out at 2r and goes to 0 where the two circles touch. This width can be defined as 2r-2rsin(Θ). Similarly, the height of the square would start at 0, and work its way up to r. The height can be defined as r-rcos(Θ). From there this problem can be seen as the unique case where the width and height are the same, and so 2r-2rsin(Θ)=r-rcos(Θ). There's a little bit of trig involved from this point, but r cancels out almost immediately leaving just Θ to solve for, which should end up as 2*invtan(1/2) or roughly 53°. Plugging back into either the width or height equation gives a side length of 2 for the square.

  • @thomasthuene3173

    @thomasthuene3173

    4 ай бұрын

    right. And much more elegant.

  • @sebastianalarcon1204

    @sebastianalarcon1204

    4 ай бұрын

    Thats how I thought about it

  • @ModestestRUST

    @ModestestRUST

    3 ай бұрын

    That was very pretty.

  • @MatthewHolevinski

    @MatthewHolevinski

    3 ай бұрын

    I looked at it graphically and instinctively knew it was 4, because the r=5 setup, now had the r's been wildly different, ya probably would of done it that way.

  • @a_39_yashraj48

    @a_39_yashraj48

    3 ай бұрын

    insta ID.. I need to understand this explanation

  • @blue_birb
    @blue_birb6 ай бұрын

    You could also think of the circles as a function. Let's say the "ground" line is the x axis and the origin is the first circle's intersection point with the ground line. Cut off the top half of the circles so we have an actual function, defined from -5 to 15 Now we just need to analyze the function a bit, let's call it f, and we need to find where f(x) = 2(5-x) And the are will be f(x)^2

  • @arshaanjaved1044
    @arshaanjaved10442 ай бұрын

    Man this bring back school memories

  • @captindo
    @captindo3 ай бұрын

    Looked at the problem from the KZread recommend screen shot and solved in a few seconds in my head. I’m a retired veteran, so, I haven’t done math in since I quit school in grade 10 lol. Neat.

  • @cassandra_classic
    @cassandra_classic6 ай бұрын

    How exciting indeed. I never liked math, yet this was still quite an interesting video. Goes to show just how important algebra is.

  • @pulledpork9778
    @pulledpork97786 ай бұрын

    Awesome video, the method was very interesting yet easy to understand! I think you could have divided both sides by (10-x) at 2:21 for further coolness B)

  • @prototypesoup1685

    @prototypesoup1685

    6 ай бұрын

    A good rule is "do not divide using the variable", just in case you divide by zero on accident. In this case, since the polynomial does have 10 as solution for x, then by dividing by "10 - x", you'd be dividing by zero

  • @rohangibbs2498
    @rohangibbs2498Ай бұрын

    That was super cool!!

  • @im_zinc
    @im_zincАй бұрын

    I think I'm falling in love, it was a pretty impressive solution.

  • @jothejoker6771
    @jothejoker67716 ай бұрын

    Mathematician: let's use calculus to determine if the semi truck will fit between those two tipped over silos. Everyone else: *pulls out tape measure*

  • @RhumpleOriginal

    @RhumpleOriginal

    6 ай бұрын

    Kids: * pull out measuring app on their tablet * GenZ: * Chat GPT wirelessly implants the answer into their brain *

  • @bakersmileyface
    @bakersmileyface4 ай бұрын

    I just looked at it and thought "Yeah that looks about a 2"

  • @stephanieputri2758
    @stephanieputri27582 ай бұрын

    what a great explanation. thanks!

  • @asaptenebrae2240
    @asaptenebrae22403 ай бұрын

    Excellente résolution et plaisant à regarder 🏆

  • @Diam0nd_King
    @Diam0nd_King4 ай бұрын

    Is it just me or does his room look like the room from fnaf 4?

  • @dheeraj711

    @dheeraj711

    4 ай бұрын

    I was thinking the same too😂

  • @mikkl99
    @mikkl994 ай бұрын

    You can make it much easier without calculations: One side of the triangle = 5, one side of the triangle = 5-x, one side of the triangle we can call 5-1/2x (instead of y, because the other half occupies the area next to the other circle). As a conclusion c^2 (=25) = (c-1/2x)^2 + (c-x)^2 And anyone that has calculated the most basic numbers of this formula sees that 5^2= 4^2 + 3^2 . That shows us x= 5-3 = 2 . I m not a math pro but I thought maybe it can make things more visible. Keep going my friend you make a lot of people stimulate their brain. Much love from romania and sorry for my bad English! ❤

  • @Quickdrawmcgraw406

    @Quickdrawmcgraw406

    4 ай бұрын

    A right triangle with a hypotenuse=5 does not always have sides of 4 and 3, however. So you still have to do most of the calculations

  • @windoo19
    @windoo194 ай бұрын

    One of most valuable things i have seen today or maybe last month on YT. Congratz.

  • @aktayakhkobek4778
    @aktayakhkobek47783 ай бұрын

    Damn that was actually fun !

  • @barryomahony4983
    @barryomahony49836 ай бұрын

    I got the same when I paused, but just used the quadratic formula to get the roots. I also threw away the mirror image and solved for a rectangle of width x/2 and height x. Keeps this 65 year old brain in shape. 😉

  • @jama211

    @jama211

    6 ай бұрын

    Nice!

  • @MCAzertox

    @MCAzertox

    4 ай бұрын

    I had the exact same approach, nice Great job by the way

  • @lucassoriano839
    @lucassoriano8396 ай бұрын

    Me ha gustado bastante el problema. Yo lo resolví así: primero sistema de ecuaciones con cos(a)=1-x/10 Cos(90-a)=1-x/5 Elevas al cuadrado ambas ecuaciones y las sumas, y obtienes que 1=(1-x/10)^2 +(1-x/5)^2. Y de aquí llegas a la misma ecuación de segundo grado y listo...

  • @arcoren1804
    @arcoren18044 ай бұрын

    Its so relaxing listening to someone explain and solve problems like this without any stress or stakes. Makes me miss learning so much

  • @alianejeromelapasaran9224
    @alianejeromelapasaran92244 ай бұрын

    It's 3am in the morning, I can't sleep. Then this pops into my FYP. Thanks OP! For stimulating my brain 🤣

  • @chochmah
    @chochmah5 ай бұрын

    You could simply use pytagoras on the triangle in view: (5-x)^2 + (5-x/2)^2 = 5^2

  • @MrSwordfish1988

    @MrSwordfish1988

    Ай бұрын

    Actually not valid since the diagonal of the square would not go through the center of the circle (if you would make the diagonal longer)

  • @needamuffin
    @needamuffin6 ай бұрын

    I saw that a single circle defined the length of a side of the square vertically and half the length of a side of the square horizontally, so instead of using an arbitrary y variable, I set it equal to 5 - x (x in this case being half of your x). I then followed the same process you did and got x = 5, 1 (since mine were half what yours were).

  • @paxChristi.
    @paxChristi.3 ай бұрын

    woahh this is super cool!!

  • @ashutoshojha4244
    @ashutoshojha42444 ай бұрын

    Thankyou to make me remember my school days

  • @Omerfurkan40
    @Omerfurkan40Ай бұрын

    This question used to be a simple question in the general university exam prepared by the ÖSYM institution in Turkey, almost like a snack.

  • @aytmatEnjoyer

    @aytmatEnjoyer

    Ай бұрын

    neler çekioz biz be kanka ya

  • @alexp7274
    @alexp72743 ай бұрын

    Pythagorean would have given the length of 3 right away at 0:54. Going the 5-x route complicated things unnecessarily imo.

  • @wilsonwang8653

    @wilsonwang8653

    3 ай бұрын

    How do you know it’s the 3/4/5 without the restrictions from the circles?

  • @alexp7274

    @alexp7274

    3 ай бұрын

    @@wilsonwang8653 the definition of the problem dictates it. Look again.

  • @thatkiidcolin8575
    @thatkiidcolin85753 ай бұрын

    That was the most impressive thing I’ve seen

  • @Isaagain
    @IsaagainАй бұрын

    This was awesome

  • @maus999
    @maus9996 ай бұрын

    I see what you did here with that title

  • @flavrt
    @flavrt6 ай бұрын

    Always enjoy your thoughtful content, Andy. How about this? Distance from the circle center to the center of square bottom side is 5√2. Then a little isosceles triangle inside the square has hypotenuse = 5√2 - 5 = √2. So the sides of this little triangle = 1. And since they are half the side of the square, the square side = 2x1 = 2 and area = 2x2.

  • @dhruvanaidu9738

    @dhruvanaidu9738

    6 ай бұрын

    5sqrt2 -5 does not equal sqrt2

  • @requiem1k87

    @requiem1k87

    6 ай бұрын

    Bro 5 root 2 - 5 is not root 2

  • @psychosocialemi
    @psychosocialemi3 ай бұрын

    that was freaking awsome

  • @austinpowersasmaozedong
    @austinpowersasmaozedong5 ай бұрын

    I REMEMBER THIS PROBLEM. It took an hour and I gave up afterwards but when you showed the part where the two radii adding up to 10 is directly on top (and therefore the same length as) the square + both the distances to its perpendicular radius it all made sense, what a wonderful treat