How to use tangent to find the missing leg of a triangle

👉 Learn how to find a missing side length of a right triangle. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a right triangle and the side lengths of the right triangle. These trigonometric identities, commonly called SOHCAHTOA, are: sin x = opposite / hypothenuse; cos x = adjacent / hypothenuse and tan x = opposite / adjacent. These identities enable us to find a missing side length of a right triangle given one of the side lengths and one of the other angles of the right triangle.
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Пікірлер: 145

  • @judtsomeguy12190
    @judtsomeguy121904 жыл бұрын

    thanks homie. its almost like im back in class

  • @isaiahvillalobos8363

    @isaiahvillalobos8363

    3 жыл бұрын

    Serio foo

  • @R0jay

    @R0jay

    3 жыл бұрын

    I’m tellin youuu

  • @felzy63

    @felzy63

    2 жыл бұрын

    i’m in class rn tryna figure this shit out😂

  • @ondalow905
    @ondalow9053 жыл бұрын

    " why are you not writing this down" damn man u jus reminded me of hell

  • @omarradillo7230
    @omarradillo72303 жыл бұрын

    Bro I’m in distance learning right now, my teacher sucks at teaching this bro Thank you a lot 🙏 Ur actually a genius teacher

  • @calvinanimations2685
    @calvinanimations26854 жыл бұрын

    Cmon Man U gotta be writing this down

  • @average_animations

    @average_animations

    7 ай бұрын

    Why you calling me out bro

  • @NotNoisyboy
    @NotNoisyboy4 жыл бұрын

    Way better than my teacher, this guy seems to be moving continuously which is really nice

  • @masterwayne420
    @masterwayne4203 жыл бұрын

    I was a bit lost learning this in class today but this helped clear it up. Thanks a lot!

  • @navyguy1011
    @navyguy10115 жыл бұрын

    This is a huge help thank you!

  • @brianmclogan

    @brianmclogan

    5 жыл бұрын

    you are very welcome!

  • @kyliemckendrick5994
    @kyliemckendrick59943 жыл бұрын

    was really struggling on a question like this and your videos really help, including when im revising for gcse's

  • @krithik2695

    @krithik2695

    2 жыл бұрын

    same for gcse on the day beffore exam

  • @eliasfeleke7920
    @eliasfeleke79205 жыл бұрын

    Jesus man I just got a math test and googled this video and aced it 😂😅

  • @sarvamsingh3148

    @sarvamsingh3148

    4 жыл бұрын

    I FOUND MY LOST BROTHER

  • @luminous9777

    @luminous9777

    3 жыл бұрын

    Jesus Christ is the only way to heaven turn to him before it is too late

  • @ahm3d.h

    @ahm3d.h

    3 жыл бұрын

    @@luminous9777 why bring religion into everything

  • @Phoenix-ii8ff

    @Phoenix-ii8ff

    2 жыл бұрын

    @@ahm3d.h cuz he is stupid patric

  • @patrikbendi

    @patrikbendi

    Жыл бұрын

    @@luminous9777 yes brother

  • @NaturallyRebelliousMusic
    @NaturallyRebelliousMusicАй бұрын

    Thanks man!! My teacher doesn't TEACH, he shows us notes and expects is to know what we're doing. This helps a ton 😊

  • @ggomoslitterboxismyface3903
    @ggomoslitterboxismyface39033 жыл бұрын

    His 1-10-minute videos have more content than my two Math teachers' 1-hour lectures in one semester combined.

  • @harrymatabal8448

    @harrymatabal8448

    2 ай бұрын

    Because you are stupid

  • @ajm.eventing1034
    @ajm.eventing10343 жыл бұрын

    My teacher doesn't do the best at teaching for me. Thanks man, you got me through my Freshman year!

  • @derencagis52

    @derencagis52

    3 жыл бұрын

    shutup nerd

  • @ajm.eventing1034

    @ajm.eventing1034

    3 жыл бұрын

    Deren Cagis what? She was a nut job. She didn’t even teach. She just sat there and expected us to know what we were going. Take your selfish attitude somewhere else. Thanks

  • @strxwbery

    @strxwbery

    3 жыл бұрын

    @@derencagis52 damn deren calm down lmao

  • @mrzeroskill
    @mrzeroskill4 ай бұрын

    This is single-handedly getting me through Geometry, you explained it so well!

  • @Dom.777_
    @Dom.777_3 жыл бұрын

    This stuff just slips your mind if you don’t practice

  • @R0jay
    @R0jay3 жыл бұрын

    Bruh I know this is from like 6 years ago but it actually helps man

  • @biagioprestifilippo5960
    @biagioprestifilippo59603 жыл бұрын

    You are a great help dude, I like your teaching style. The way you bust out your students is hilarious

  • @JamesTheJocund
    @JamesTheJocund4 жыл бұрын

    Thank you! This helps a lot!

  • @timothyburns848
    @timothyburns8482 жыл бұрын

    Thankyou Brian 🙂 this really helped, I’m currently doing a biology diploma and trigonometry is part of my course, I think it is my weakest area atm but I’m determined to get it lol

  • @sunneside3471
    @sunneside34713 жыл бұрын

    Thanks a ton! Your a lifesaver

  • @_Xypes_
    @_Xypes_2 жыл бұрын

    It’s so cool to actually learn stuff like this in year 8. I’m not gonna get it perfect, but I like to learn stuff.

  • @redflower6020
    @redflower60203 жыл бұрын

    Thank you It's been 3 hours since I've started my trigonometry homework (distance learning) and I needed this ^-^

  • @oreoislife2447
    @oreoislife24473 жыл бұрын

    This helped me so much Thank you

  • @Adam-ip5dy
    @Adam-ip5dy3 жыл бұрын

    what I would do to make this man my teacher. he's the only reason I'm passing math

  • @maddiebabyy1804
    @maddiebabyy18042 жыл бұрын

    Super helpful thank you!

  • @klaus6178
    @klaus6178 Жыл бұрын

    I'm impressed, you are a very good teacher.

  • @memernator5025
    @memernator50252 жыл бұрын

    Thanks so much...my teacher explains this stuff to me so bluntly

  • @ttbear-jb1wf
    @ttbear-jb1wf8 ай бұрын

    thanks so much I was absent when my teacher explained this you have been a big help.

  • @AAndrecs
    @AAndrecs3 жыл бұрын

    This man is a legend

  • @panashechamunokara9753
    @panashechamunokara97533 жыл бұрын

    thank you for the help

  • @thomasholkham4608
    @thomasholkham46083 жыл бұрын

    thanks man this helped a lot haven't done trig since grade 9 almost 4 years I was so lost.

  • @toill_
    @toill_22 күн бұрын

    this really helps!!

  • @DJ-il8iv
    @DJ-il8iv2 жыл бұрын

    Appreciate you. Remembering HS and how it was so perplexing

  • @brianmclogan

    @brianmclogan

    2 жыл бұрын

    Exactly!

  • @evinax3794
    @evinax37943 жыл бұрын

    thank u! i have a test in 2 days and this really helped me

  • @mauricesegar3626
    @mauricesegar36263 жыл бұрын

    Thank you Sir,

  • @benjaminwalker6766
    @benjaminwalker6766 Жыл бұрын

    Thanks your videos are great

  • @mylittlevlog3722
    @mylittlevlog37222 жыл бұрын

    U explain so so so good the best video to find inverse trigonometry

  • @Jped277
    @Jped277 Жыл бұрын

    It's amazing i would have been bored in this class. Yet i end up here on KZread because this is exactly how to measure a dovetail slot with some known sized dowel pins. Pretty cool to use this stuff in real world problems.

  • @Agent-np3qz
    @Agent-np3qz4 жыл бұрын

    Boom quick maths

  • @evail6002
    @evail60023 жыл бұрын

    your honestly just so amazing omggggggg thank you so much :DDDDDDDDD

  • @cmayotte9431
    @cmayotte943111 ай бұрын

    I have to do this in a geometry book, and they never even mentioned tangent. Thanks, Brian!

  • @JacobStewart-zq7gv
    @JacobStewart-zq7gv6 ай бұрын

    This guy has carried my grade this year bc my teacher isn’t very good at teaching lol

  • @alaaalbudeiri1064
    @alaaalbudeiri1064 Жыл бұрын

    Thankfully teacher

  • @Bigblackhelicopter
    @Bigblackhelicopter4 жыл бұрын

    Solve the Triangle

  • @TamiBlaze
    @TamiBlaze3 жыл бұрын

    saving my math for 2021

  • @Aercryptic
    @Aercryptic2 жыл бұрын

    im learning more from a 5 min youtube than 1 hour of class

  • @mccauleybacalla2228
    @mccauleybacalla2228 Жыл бұрын

    THANKS

  • @mpfstudios
    @mpfstudios2 жыл бұрын

    Does this work for other angles on the same triangle to find another side length?

  • @Sewer.dwelling.rat.
    @Sewer.dwelling.rat.2 жыл бұрын

    Ngl I already learned this but my teacher did like a throwback assignment and ur video helped me cuz I completely forgot how to do it

  • @kyutblizy9904
    @kyutblizy99043 жыл бұрын

    When do you if your going to multiply or divide the Tan,Cos, or Sine?

  • @FurganManafov
    @FurganManafov Жыл бұрын

    Math is beautiful!

  • @naradamugnolo7555
    @naradamugnolo75553 жыл бұрын

    What A LEGEND

  • @KimiHayashi
    @KimiHayashi Жыл бұрын

    Man this reminds me so much of my highschool days😚

  • @nyxcal
    @nyxcal3 жыл бұрын

    tysm my teacher didnt explain well

  • @KIXEMITNOG
    @KIXEMITNOG4 жыл бұрын

    Nice

  • @meow_imacatbruh
    @meow_imacatbruh Жыл бұрын

    How do u solve for y?

  • @tann3r4k
    @tann3r4k4 жыл бұрын

    quick mafs

  • @yoursleepparalysisdemon1828

    @yoursleepparalysisdemon1828

    4 жыл бұрын

    tannerow Stolen

  • @tesla2166

    @tesla2166

    4 жыл бұрын

    Quick English

  • @divusgaiusjuliuscaesar4657

    @divusgaiusjuliuscaesar4657

    3 жыл бұрын

    Your Sleep Paralysis Demon shuuuuush

  • @sebastianspiguel445
    @sebastianspiguel4452 жыл бұрын

    I be watching these videos during class cuz I cant understand a word of what my teacher says, tysm for these vids!

  • @orion_222
    @orion_2223 жыл бұрын

    thakns

  • @dailydevph2513
    @dailydevph2513 Жыл бұрын

    Brings back college days....

  • @-m00ncity39
    @-m00ncity39 Жыл бұрын

    “Why you not writing this down?🤨” 😂😂😂

  • @brianmclogan

    @brianmclogan

    Жыл бұрын

    Haha

  • @freewoodencrosses
    @freewoodencrosses3 жыл бұрын

    Takes me back to trig class in 1966, but we did not have calculators (not invented yet), just the tables in the back of our books

  • @JesseClaus
    @JesseClaus2 жыл бұрын

    Bro, I'm trying to figure out how long the legs of a heptagon need to be in order to make a heptagonal nativity set for my wife this Christmas, and you totally helped me out. Whoever said this stuff wouldn't be applicable in real life never used math in real life;)

  • @brianmclogan

    @brianmclogan

    2 жыл бұрын

    Hahah love it!!

  • @bubblebrooke3338
    @bubblebrooke33382 жыл бұрын

    I'm lost. How do you put in the calculator

  • @drumtwo4seven
    @drumtwo4seven7 ай бұрын

    Damn Good 👍

  • @kimi59
    @kimi59Ай бұрын

    thanks! you sound like royce du pont

  • @sergboss1014
    @sergboss10143 жыл бұрын

    What do you type in the calculator. Help please

  • @bubblebrooke3338

    @bubblebrooke3338

    2 жыл бұрын

    Me tooo. Idk how you put it in.

  • @johnny8641
    @johnny86412 жыл бұрын

    So then what would you do if the X was the denominator and the whole number was the numerator?

  • @hijiemoji1915
    @hijiemoji1915 Жыл бұрын

    Sir how to find the value of tan, sin , cos of any acute angle like tan20 , tan 25, sin 79 without using calculator?.....if there is any way pls tell me sir ...or tell me the method that calculators use to find any value of sin, tan and cos .....pls sir

  • @chillinedits.

    @chillinedits.

    Ай бұрын

    i dont think hes gonna reply sadly with 1 like after a year

  • @jessicaluna1574
    @jessicaluna15743 жыл бұрын

    If I am trying to find adjacent is it the exact same or do I need to inverse?

  • @rj_7757

    @rj_7757

    3 жыл бұрын

    You do the inverse

  • @robertirwinsgf
    @robertirwinsgf3 жыл бұрын

    I thought his name was brain

  • @I_Am_Daniel_and_i_am_Cool
    @I_Am_Daniel_and_i_am_Cool Жыл бұрын

    hi this is a good vide, but can you make a video about calculating the opposite side using sin please. because my school have to learnt this but i want to learnt it earlier than them

  • @brianmclogan

    @brianmclogan

    Жыл бұрын

    I have videos on that

  • @eqlzr2
    @eqlzr23 жыл бұрын

    Yes, but 3.26 what? What units? If X is the height of a tree for example, what are the units of height? Thx.

  • @enzoqueijao

    @enzoqueijao

    3 жыл бұрын

    Since it's a theoretical maths exercise, the unit of measurement doesn't matter, just the numbers. If you were trying to find the height of a tree, then it'd depend of the length of the adjacent side. If it was 7 meters, then the opposite would be 3.26 meters

  • @aminamoomand5360
    @aminamoomand53602 жыл бұрын

    Hello, love your videos but im still confused on my homework. the answers time out after 3 tries and im on my last attempt here. THe first two attempts they got really big numbers like 220 and 105 for the opposite side but when i do it i only get 11.55. my angle is 58.8 and my adjacent is 127 m.

  • @gabbypatino7303
    @gabbypatino73033 жыл бұрын

    I’m getting a huge number like 3.960.

  • @gracekeller7024
    @gracekeller70242 жыл бұрын

    I always watch your videos when my teacher confuses me 😂

  • @axofbrevity
    @axofbrevity3 жыл бұрын

    This is the closest I've been to being in class this school year 😫😥😭

  • @Just7Dragon
    @Just7Dragon9 ай бұрын

    I can see why he has so many subs

  • @ismuzakku
    @ismuzakku3 жыл бұрын

    i have a IGSCE maths test tomorrrow

  • @ThatboyBanz
    @ThatboyBanz2 жыл бұрын

    Hey teach can you tell the students in my air pods to be quiet I can’t hear the lesson

  • @harrymatabal8448
    @harrymatabal84482 ай бұрын

    Use a pair of crutches

  • @tequiladenise7787
    @tequiladenise7787Ай бұрын

    lol…. Someone yelled out after he said it was over… “ thank God” 😅

  • @yassinewaterlaw6597
    @yassinewaterlaw6597 Жыл бұрын

    2:35 what he said ??

  • @ronwaniko4350
    @ronwaniko43503 жыл бұрын

    labyu kalbo

  • @minnesota_railfan
    @minnesota_railfan Жыл бұрын

    I fr just learned more in a 5 minute video than I did in a 6 week geometry unit 💀

  • @brianmclogan

    @brianmclogan

    Жыл бұрын

    Boom

  • @wellusee
    @wellusee3 жыл бұрын

    I would have measured 7 inches along the line then measured up to the other line. Am I missing something ? Still nice to see the other way.

  • @teopalafox

    @teopalafox

    3 жыл бұрын

    Its just a diagram, its not necessarily to scale , so you cannot do that

  • @secret_watcher5047
    @secret_watcher50472 жыл бұрын

    What grade is he teaching

  • @emiyamyst3949
    @emiyamyst394910 ай бұрын

    the goattttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt

  • @harrymatabal8448
    @harrymatabal84482 ай бұрын

    Was it involved in an accident

  • @brianmclogan

    @brianmclogan

    2 ай бұрын

    Rugby

  • @SMILE-su2fo
    @SMILE-su2fo2 жыл бұрын

    "no" was too personal

  • @sanidhsalman7507
    @sanidhsalman75072 жыл бұрын

    The saddest part is we cannot use calculators in our syllabus

  • @jacksonparker3671
    @jacksonparker3671 Жыл бұрын

    Okay, but how are you going to multiply degrees without a calculator?

  • @wack3088
    @wack30882 жыл бұрын

    I wish I was HIGH on POTainuse...

  • @proyt4838
    @proyt4838 Жыл бұрын

    Wow! Americans learns math too wow I am seeing this first time that americans also watching math classes Secondly, why this question take 4 to 5 minutes this can be solved in just 2 min.

  • @_msnnanbakbshhsn
    @_msnnanbakbshhsn3 жыл бұрын

    Dab, for the best subscription.

  • @riot2194
    @riot21942 жыл бұрын

    Respect form iraq . but the fact is he does not have enough information about this topic so i forced to learn english language and search for english math teachers

  • @brianmclogan

    @brianmclogan

    2 жыл бұрын

    What are you looking for?

  • @FatherCaveman
    @FatherCaveman4 жыл бұрын

    Quick maths

  • @yoursleepparalysisdemon1828

    @yoursleepparalysisdemon1828

    4 жыл бұрын

    Stolen comment

  • @branditbandit4818

    @branditbandit4818

    4 жыл бұрын

    Your Sleep Paralysis Demon does it rlly matter?

  • @FatherCaveman

    @FatherCaveman

    4 жыл бұрын

    Ikr brandit

  • @kevinkinal9557
    @kevinkinal95573 жыл бұрын

    Answer... Use a scientific calculator... um thanks for nothing

  • @purplerxd6660
    @purplerxd66602 жыл бұрын

    Do this while crying btw

  • @heartparts5805
    @heartparts58054 жыл бұрын

    Q u i c k m a t s

  • @taohu528
    @taohu5284 жыл бұрын

    Im prolly the only 10 yr old watching this

  • @7DegreesOfFreedom

    @7DegreesOfFreedom

    3 жыл бұрын

    Yep