Proving Parallelograms With Two Column Proofs - Geometry
This geometry video tutorial provides a basic introduction into two column proofs with parallelograms. It explains the different ways of proving parallelograms. Here are five ways: 1. opposite sides must be parallel. 2. Opposite sides must be congruent. 3. opposite angles must be congruent. 4. 1 opposite side may be both parallel and congruent. 5. Diagonals must be perpendicular bisectors of each other. This video contains plenty of examples and practice problems. Here is a list of theorems used in these two column proofs: reflexive property, vertical angle theorem, definition of a parallelogram, definition of a midpoint, definition of a segment bisector, addition property of equality, substitution property of equality, definition of congruent segments, segment addition, SAS postulate, ASA postulate, and CPCTC.
Polygons: • Polygons
Angles of Regular Polygons:
• How To Calculate The I...
Quadrilaterals:
• Quadrilaterals - Geometry
Parallelograms:
• Parallelograms - Geometry
Rectangles - Special Quadrilaterals:
• Rectangles - Propertie...
Isosceles Trapezoids:
• Isosceles Trapezoids
_________________________________
The Rhombus:
• Rhombus, Basic Introdu...
Kites:
• Kites, Basic Introduct...
Proving a Quadrilateral Is a Kite:
• Proving a Quadrilatera...
Proving a Quadrilateral Is a Rhombus:
• Two Column Proofs - Pr...
__________________________________
Proving Isosceles Trapezoids:
• Two Column Proofs - Pr...
2 Column Proofs - Quadrilateral:
• Two Column Proofs With...
Skew Lines:
• Skew Lines, Perpendicu...
Points, Lines, Planes, & Segments:
• Points, Lines, Planes,...
_______________________________________
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We all out here struggling with math huh
@BiG-JuPO1O1
4 жыл бұрын
Yep its killing me this year. I rather do algebra then Geomentry.
@celeste2221
3 жыл бұрын
@@BiG-JuPO1O1 Broooo samee Geometry looks like a whole different language to mee!!
@williammuller9623
2 жыл бұрын
@@celeste2221i remembered being scared of algebra before
@jjfanpage4670
2 жыл бұрын
Dog I got a 20 question geometry test rn and I’m still struggling
@khanya5340
2 жыл бұрын
@@jjfanpage4670 rn?💀
Bless his soul this is gonna save me and my grade
@oimobbu2330
5 жыл бұрын
IT DID, I GOT AN A ON MY TEST CUZ OF THIS❤️❤️❤️❤️❤️❤️❤️
@tashnimulmazid9706
4 жыл бұрын
Lmao good job
@pilot4910
4 жыл бұрын
Pose
😭😭🥺can we please give this guy a round of applause cause in every video I've watched of him explaining any topic I excelled in that class or topic😹he takes the whole 50 minute lesson in class full of confusion into something simple taught within 20minutes🔥thank youuu
@footygoatz7552
Жыл бұрын
15 mins ago,the struggle is real😔
@skhumbuzoxulu9385
Жыл бұрын
@@footygoatz7552 😭but we still pushing and grinding
yep still struggling tommrw test gonna be tough
@williameyelash4426
4 жыл бұрын
yo how was it
@Elsayed80
3 жыл бұрын
Hope you past that test 😂
@nosi9189
3 жыл бұрын
I relate to this comment rn
@user-pn4wk6tn9d
3 жыл бұрын
How'd it go
@nosi9189
3 жыл бұрын
@@user-pn4wk6tn9d I passed with a 60 lol...
why am i always having a hard time here
I hate honors geometry
@adamfilipkowski8774
5 жыл бұрын
Whos ur teacher?
@sg-ud2fv
5 жыл бұрын
@@adamfilipkowski8774 ur mom
@Icejaker
5 жыл бұрын
Adam Filipkowski mr. Ben dover
@andyh.7428
5 жыл бұрын
Ms. Jack P. Ness
@theleakyhorcrux535
4 жыл бұрын
Me too :(
"And now we have a problem, I am out of space". Damn I love this guy, no homo.
You actually helped a lot so here’s a new sub
MR. Organic Chemistry Tutor, thank you for another lengthy video/lecture on Proving Parallelograms With Two Column Proofs. I found this topic long and somewhat difficult to follow, so I will review this material for a clear and deep understanding.
Great video 👍but in tests or Exams they don't give us alot of Given Statements like you have and that's where we tend to get lost
@mili9781
4 жыл бұрын
Gabrielle Pillay sometimes there’s two in one given statement
@beakerthebeaver581
2 жыл бұрын
They usually give 2 given statements so his proof is exactly like the test
My question doesn’t have lines in the middle I was just given points :/
Litterally somebody tell me how this will help me in my real life job some day.
@stephaniesguide8320
2 жыл бұрын
It can help you understand your exam and then you pass, earn a degree and get a job😊
@truezeonic3617
2 жыл бұрын
It doesn't.
@neglecteduzumakigmailcom
Жыл бұрын
@@stephaniesguide8320 the matrix system 💀
@josiahwhite3157
Жыл бұрын
I’m sayin
@Little-rb6rb
Жыл бұрын
how does playing fortnite 8 hours a day help you in your job
In order to take a retest I need to watch 14 20-30 minute long videos plus fix my test all in 3 days with no time to do so. Thank you for making this really easy for me and wish me luck lol.
Great video, and lovely explanation
Thank you so much this helped a lot!
this was really helpful... thanks!!!
Thanks you cleared my doubts
thank u i needed this :)
This helped me so much
Man was bugging on that last question he could have just said it was congruent and moved but he low-key wrote a whole essay
Super helpful 👍
in the fist question cant you use alternative angles and then prow two lines are parallel and congruent
Thank you so much
I gotta lock in for this midterm
Thank you very much it helped me understand a lot🙂
@pierremathieu6632
2 ай бұрын
De 3❤
thank you!!!
tysm this was so so so helpful
Thank you so much you saved my future from a great risk
Thank you so much!
i was so worried and all 'WHERE'S G!?'
@Tangerine2600
2 жыл бұрын
sameeee
Thank you so much ❤😭
the first proof you could've said for step 2 if two lines are cut by a transversal so that the alternate interior angles are congruent then the lines are parallel then for step 3 if one pair of opposite sides in a quadrilateral are both congruent and parallel then the quadrilateral is a parallelogram
YOU ARE A GOD THANK YOU
time 20:50, the diagonals bisecting each other DOES NOT man the angle is () , (as you drew it inn your illustration), only rhombuses and squares form right angles at diagonal intercepts. GREAT tutorials , thanks.
Thx very helpful
Thanks it is my homework.
What are you using to display and draw your lessons?
Thanks a lot
I'm pretty sure half these proofs can be done A LOT faster.
For the second proof number 7 can i say that ABCD is a parallelogram and as a reason angles BD and AC are congruent and therefore if opposite angles of a quadrilateral are coungruent then the quadrilateral is a parallelogram without step 8? Pls answer quick and if not explain. I have an exam in two days.
@lordcooper5889
2 жыл бұрын
Its at 10:03
First and i love u and merry Christmas, happy new year to everyone
Hello there. My given parallelogram doesn't have lines in it. What should I do? Should I just get the congruent and parallel opposite sides? Also the interior angles? I'm struggling
@kokipop6470
2 жыл бұрын
late response but you can usually just plot the lines yourself by using Line Postulate (states that any 2 points has a line within it) let's say you wanted to make 2 diagonals and plot a line connecting the points A and C and B and D like in the video basically in a 2 column proof your statement would be "Plot lines AC and BD" and your reason would be line postulate
@preciouspets8m396
Жыл бұрын
@@kokipop6470 tysm ❤
Thanks
thank youuu
Sir, please provide me the link of "Droppler effect" of physics.. Thanking you..
@noobster9999
3 ай бұрын
So did you get that link after 6 years?
@amy-kt1th
3 ай бұрын
@@noobster9999 lol
I think steps 7 and 6 are incorrect for your last proof
for the 1st proof, coudn't you just sat that ba=cd because AIA--> parallel? and parallel congruent lines prove parallelogram?
@ame6863
4 жыл бұрын
Adison Smith that could technically be an iscosceles trapezoid it however you spell that, it needs to be 2 pairs of congruent lines
Gotta test next period😂😂
Great vid, but if we prove that opposite sides are parallel, isn’t that also the case with a rhombus?
@landonmontano0950
4 жыл бұрын
yes because a rhombus is a parallelogram
@beakerthebeaver581
2 жыл бұрын
In this video he is proving parallelograms, He wasn’t really proving types of parallelograms.
im gonna kms🧍♀️
@Tangerine2600
2 жыл бұрын
have you done it yet? or have you realized that proofs are just a super hard concept to easily grasp the first time around, and that you are still growing as a person?
@iwantagiantscythe7796
Жыл бұрын
LMAOOO the fact that I’ve seen u in other geometry videos I’m struggling so hard
got a exam tmr and onlt started studying at 6, wish me luck
hey sir, can i hire your brain for exams?!
@skhumbuzoxulu9385
Жыл бұрын
Lol😹
baket ba di ko gets😭
I love you. literally I gotta say. I love you
Yk I’m finna fail my yearlys gosh darn
bro explained in twenty minutes what khan academy tried to explain in an hour
Got a test tom 😢😅
my teacher is giving me a test 2 days be4 vacation rip
where is g ???
Hey sir,what can we reflect about this video?(plss notice me^^)
This proves that the world is a simulation…
but a kite doesn't have exactly a pair of congruent opposite angles....
Man 2morows June p2 test ugh
I fucking love u bro
Sorry, you can just cut all this short
Great video but my teacher is useless it’s sad I have to go online because they won’t explain it to me
Glean
Why do you have adds
I'm not understand any thing
I wanna know how many people here are watching this at 12:00 AM like me
still don't get it😭💗
I still dont get it 🤠
the final step of the proof is wrong. the reason is not definition of a parallelogram but it is chracterisric of A Paralleloram
@jeronimoadames6624
5 жыл бұрын
ethan 2 whatever the teacher says kid
@ryankilburn6966
5 жыл бұрын
they are both the same thing
i hate year 8 math
aur ladke kya haal
Haha haha
you sound so cute im attracted i cant focus
@user-jq4fn5tf2i
3 жыл бұрын
wtf pilipenx
@myyuh99
6 ай бұрын
💀💀💀💀
Oesy
#gonnafail
i give up
I hate delta math on god
5:01 you dont need to solve it this way, by knowing angle DCA is equal to angle BAC, we can know CD and AB are parallel (alt.angles,equal). So you can prove ABCD a parallelogram (opp sides equal and //)
Thanks