How to Find the Diagonal Length of a Rectangle

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  • Опубликовано: 3 фев 2025

Комментарии • 193

  • @WrathofMath
    @WrathofMath  4 года назад +12

    Check out my new math rap channel if you're looking to bump some tunes! 🔥 ruclips.net/video/L68v_W40SYo/видео.html

    • @andrewjalen8727
      @andrewjalen8727 3 года назад

      you prolly dont care but if you're stoned like me atm you can watch pretty much all the latest movies on InstaFlixxer. I've been binge watching with my brother for the last months :)

    • @karsoncolt1866
      @karsoncolt1866 3 года назад

      @Andrew Jalen Yea, I have been using InstaFlixxer for since december myself :D

    • @forestt1276
      @forestt1276 3 года назад

      these bots... i've seen these 2 eveywhere

  • @xcznikka7717
    @xcznikka7717 4 года назад +170

    Doing this since this online school thing got me going crazy

  • @cherita45
    @cherita45 4 года назад +51

    oh my god thank you-
    this has saved me-

    • @WrathofMath
      @WrathofMath  4 года назад +5

      Thanks for watching and you're welcome! I am glad it helped!

  • @manickavasagambs4631
    @manickavasagambs4631 4 года назад +9

    Thank very much for this video. I saw this video 2hrs before yearly exam

  • @Overflow066
    @Overflow066 4 года назад +16

    Probably a big goof of myself that I didn’t realise that you calculate it with the plain old Pythagorean theorem.

    • @WrathofMath
      @WrathofMath  4 года назад +4

      Thanks for watching and that's right, it's a handy application of that wonderful theorem! By the way, if you're interested in seeing a proof of the theorem, I recently ate bugs while presenting a proof in this video: ruclips.net/video/rw-OIl0RHpg/видео.html

  • @user-xr9iz8fl2k
    @user-xr9iz8fl2k 4 года назад +23

    thank you so much !! this helps so much and i understood it easily !

    • @WrathofMath
      @WrathofMath  4 года назад

      So glad to hear it, thanks for watching and let me know if you ever have any lesson requests!

  • @KYOMUME
    @KYOMUME 3 месяца назад

    i woukd like to thank every math related channel for your service including wrath of math🙏

  • @AnNguyen-jm6dy
    @AnNguyen-jm6dy Год назад +6

    I've looked for so many vids but this one was so easy to understand, thank u!

  • @CF542
    @CF542 4 года назад +14

    When Yoda stated, "That is why you fail", he was talking to me.

  • @selinaz02
    @selinaz02 3 года назад +13

    Thank you, I’m in seventh and I feel as if I should know this; now you taught me!

    • @WrathofMath
      @WrathofMath  3 года назад

      So glad it helped! Thanks for watching!

    • @selinaz02
      @selinaz02 3 года назад

      Yeah! Thanks so much just found out that I had a question in my workbook about this and now I know this! :)

  • @comradesnearequator2584
    @comradesnearequator2584 3 года назад

    These types of channels are the most helpful

    • @WrathofMath
      @WrathofMath  3 года назад

      Thanks for watching! Glad it's helpful!

  • @Football_pro7
    @Football_pro7 9 месяцев назад +1

    Thank you so much MR

  • @kinggamer-p5y
    @kinggamer-p5y 4 месяца назад +1

    thank so much ☺

  • @karynmorton4843
    @karynmorton4843 4 месяца назад

    Needed this cause I forgot what I learned in high school. Thank you.

    • @WrathofMath
      @WrathofMath  4 месяца назад

      Glad to help, thanks for watching!

  • @thisismykingdomcome8743
    @thisismykingdomcome8743 4 года назад +4

    Thanks for such a good video, Anyone doing work during the quarantine?

    • @WrathofMath
      @WrathofMath  4 года назад +1

      You're welcome and thanks for watching, Joshua!

  • @imblrd498
    @imblrd498 3 года назад +1

    Thanks this was an amazing video to help me on a topic i didnt understand

  • @harshhh1.15
    @harshhh1.15 4 года назад +2

    Thank you so much wrath math...
    You literally saved... 🙌

    • @WrathofMath
      @WrathofMath  4 года назад

      You're very welcome, it is my pleasure! Thanks for watching!

  • @bardhixhaferaj97
    @bardhixhaferaj97 3 месяца назад +1

    Thanky

  • @maxtonbohm8737
    @maxtonbohm8737 4 года назад +4

    Thank you so much this helped a lot and i understand how to do this now

    • @WrathofMath
      @WrathofMath  4 года назад

      You're very welcome, I am glad it helped!

  • @sociallyawkwarddonut5469
    @sociallyawkwarddonut5469 4 года назад +4

    I was working on math on google classroom and a question like this came up and I was like "wait, how do I do this again?" I already learned this in school but I completely blanked. Then I watched this and I was like "OHHHHH I REMEMBER NOW!" so thank you so much, now I won't fail math class.

    • @WrathofMath
      @WrathofMath  4 года назад +1

      I am glad it helped! Thanks for watching!

  • @jingwenmei4490
    @jingwenmei4490 10 месяцев назад

    Thanks man this was so clear it really helped

  • @shiftaxisrecords
    @shiftaxisrecords 2 года назад +1

    Thanks for the refresher! Great video!

  • @dr.rajalakshmielumalai1672
    @dr.rajalakshmielumalai1672 5 лет назад +4

    Thanks finally understood!!

  • @nascar453-3
    @nascar453-3 Год назад

    Thanks I’m doing summer classes and the videos aren’t making sense but this one has helped me

    • @WrathofMath
      @WrathofMath  Год назад

      Awesome, thanks for watching and good luck!

  • @politicswithjenna
    @politicswithjenna 10 месяцев назад

    Omg THANK YOU! I'm in grade 9 but I struggle with these concepts. This was well explained and I really appreciate what you do!

  • @UNKNOWN-ce5bp
    @UNKNOWN-ce5bp 2 года назад +1

    VERY HELPFUL SIR

    • @WrathofMath
      @WrathofMath  2 года назад +1

      Glad to hear that! Thanks for watching!

  • @paulmullikin9215
    @paulmullikin9215 6 месяцев назад

    Thanks for explaining. Only had general math in 1960’s H.S. My poor vision not allowing me to see “blackboard”. Tested in college w/ glasses; tested high IQ. ie: Make sure your kids get vision exams.

  • @munmunpal5911
    @munmunpal5911 6 лет назад +8

    It is a good video

    • @WrathofMath
      @WrathofMath  6 лет назад

      Thank you for your comment and for watching!

  • @shahlanasreen.p8971
    @shahlanasreen.p8971 3 года назад

    ThNks for this useful video now l learned how to find diagonals

    • @WrathofMath
      @WrathofMath  3 года назад

      Glad to hear it, thanks for watching!

  • @asifahmad2551
    @asifahmad2551 6 месяцев назад

    Thank you 👍🏻

  • @idkwhattonamethis0
    @idkwhattonamethis0 11 месяцев назад

    thank youuu saved my life

  • @tabadaantonjoshuam.5252
    @tabadaantonjoshuam.5252 3 года назад

    Thank you. Helped me alot with school works

    • @WrathofMath
      @WrathofMath  3 года назад +1

      Glad it helped, thanks for watching! If you're studying geometry, you may be in the mood to vibe to the circle song: ruclips.net/video/zj6YKOCrS74/видео.html

  • @carolynkuespert8228
    @carolynkuespert8228 Год назад

    Thanks for the review lesson.

    • @WrathofMath
      @WrathofMath  Год назад

      My pleasure - thanks for watching!

  • @munirbashir9617
    @munirbashir9617 2 года назад

    i apriciate u for this man🙏🙏🙏

  • @shizahaque4022
    @shizahaque4022 4 года назад

    Thank you so much... was in so much trouble.. 😊

    • @WrathofMath
      @WrathofMath  4 года назад +1

      You're very welcome, I'm glad it helped!

  • @abdulbasitakueb
    @abdulbasitakueb 3 года назад +1

    Its useful in grade 8 Cambridge board

  • @MohitSaini-br4yc
    @MohitSaini-br4yc 3 года назад

    Thanks bro for helping me

  • @yandrapukumar3455
    @yandrapukumar3455 5 лет назад +5

    For example sir a(2.447) b(1.515) how to find c??? Please explain sir

    • @WrathofMath
      @WrathofMath  5 лет назад +2

      Thanks for watching and good question! I answer your question in this new video: ruclips.net/video/lP4kTCDB58E/видео.html around the 9:38 mark

  • @Angel-ch4xv
    @Angel-ch4xv 4 года назад

    thank you for this online classes are so hard

    • @WrathofMath
      @WrathofMath  4 года назад

      Glad it helped! Keep working hard and I hope you'll do well in your courses! Let me know if you have any questions!

  • @Fun4life853
    @Fun4life853 4 года назад +1

    Thanks sir for telling how to get perimeter from diagonal and length , my exam's are here thanks sir

    • @WrathofMath
      @WrathofMath  4 года назад

      You're very welcome, I am glad it helped! Thanks for watching!

  • @heroaskaban5697
    @heroaskaban5697 Год назад

    uhm just a question how did you get 16 and 9 ??

  • @ishabhairavi.s2992
    @ishabhairavi.s2992 3 года назад

    Thanks a lot!🙏🏼❤❤❤

    • @WrathofMath
      @WrathofMath  3 года назад

      You're welcome! Thanks for watching!

  • @jacobkasparian8229
    @jacobkasparian8229 Год назад

    Thank you!

  • @adityamaurya7503
    @adityamaurya7503 4 года назад +1

    Thanks Bruh 🙏🙏

    • @WrathofMath
      @WrathofMath  4 года назад

      No problem, thanks for watching!

    • @adityamaurya7503
      @adityamaurya7503 4 года назад

      @@WrathofMath love from India buddy 😍

  • @lmbda1812
    @lmbda1812 Год назад

    this was helful

  • @yuiix0026
    @yuiix0026 3 года назад +2

    im 8th grade and i didn't even know this 😭😭 THANK U SO MUCH

  • @siddeshwarithape2124
    @siddeshwarithape2124 3 года назад

    Thank u 😊🤗

    • @WrathofMath
      @WrathofMath  3 года назад

      You're very welcome, thanks for watching!

    • @siddeshwarithape2124
      @siddeshwarithape2124 3 года назад

      Sir because of lockdown I don't understand maths but now my favourite subject is maths 😁 and it's possible because of u 😌 thank u so much sir 😊

  • @brianaquinn2820
    @brianaquinn2820 2 года назад +1

    Hi! I am trying to solve this question I have in my workbook from school and cant seem to find an answer, It s a rectangle with two quarter circles touching in it and all we have is the radius is 5cm The vertices are opposite and I have to try find the area of the rectangle. I have tried Pythagoras and other things but I can't figure it out! Thanks! We are trying to find the diagnol as e thoght itwoudl help hence how we ended up on your video

    • @WrathofMath
      @WrathofMath  2 года назад

      I'm not sure what you mean when you say the vertices are opposite. Based on my understanding of your problem, we have a rectangle with a quarter circle of radius five on its left side, and this touches a quarter circle of radius five on the right side of the rectangle. The quarter circles touch at the midpoint of the bottom side of the rectangle, and this gives us a base length of 10 and rectangle height of 5, since it is a radius of the quarter circle, Thus, A = 50. But I very well may have misunderstood the problem.

    • @brianaquinn2820
      @brianaquinn2820 2 года назад

      @@WrathofMath The two centre of the quarter circles are opposite corners of the rectangle and the circles touch in the centre .... Is there a way j could send you a picture?

  • @bigdoge
    @bigdoge Год назад

    Wow thank you! ❤

  • @anthonyhill692
    @anthonyhill692 4 года назад

    Nicely explained. Thank you. Can i ask what the tune at the end of the video is??

    • @WrathofMath
      @WrathofMath  4 года назад +1

      I'm glad it helped and thanks for watching! The song at the end is a song I wrote called "To the Moon and Back". I have not published a finished version, but you can hear some more of my music here if you're interested: ruclips.net/user/SeanEMusicvideos

  • @yuiix0026
    @yuiix0026 3 года назад

    how did u get the 4 an 3

  • @lilavmohamed6008
    @lilavmohamed6008 4 года назад

    Thank you v much 💛💛

    • @WrathofMath
      @WrathofMath  4 года назад

      No problem, thanks for watching!

  • @SaurabhSharma-jy7cs
    @SaurabhSharma-jy7cs 2 года назад

    Quick ans easy 👍

  • @Stephanie-lb6tt
    @Stephanie-lb6tt 3 года назад

    Whoa… brought me back to high school!

  • @Wassuppz
    @Wassuppz Год назад

    Thankyou sir

  • @carlosayala6754
    @carlosayala6754 Год назад

    Thank you

  • @gracekimeu4558
    @gracekimeu4558 9 месяцев назад

    how can i get to find the perimeter of a diagonal rectangle if it has a measurement of the diagonal and the width also🤓

  • @theperfecttube1235
    @theperfecttube1235 5 лет назад +1

    (base)2=(altitude)2+(hypotenuse)2

  • @BaBa_SyPher
    @BaBa_SyPher 4 года назад

    How did you get the 5

  • @dAnDeLiOnS_2689
    @dAnDeLiOnS_2689 4 года назад

    how to find diagonal of a rectangle if side and area is given, how much time would it take to cross diagonally, can u solve this kind of questions?

    • @WrathofMath
      @WrathofMath  4 года назад

      I'll get to the first part soon, as far as how much time it would take to cross diagonally I am not sure what you mean. Give me more specifics about that and maybe I can help.

  • @kotux0910
    @kotux0910 4 года назад +1

    Had to look this up because my teacher literally didn’t teach us this and then have the audacity to tell me during a test that counts for like 50% of my grade that she did

  • @nlugo109
    @nlugo109 Год назад

    I'm still a bit confused cause the diagonal for my rectangle is 77 do i do 5 cause the diagonal is 25 so c = 5

  • @AbsoluteFilth
    @AbsoluteFilth 3 года назад

    Don't know how the theory works, but it helped me nevertheless

    • @WrathofMath
      @WrathofMath  3 года назад

      Glad to help, thanks for watching!

  • @GeenoDente
    @GeenoDente 4 года назад

    I came here trying to figure out what the length and hight of my window frame was i know that diagonally its 6ft. In your example you just randomly assigned numbers to the frame like 4, and 3.. this doesn’t help.

  • @praveshyadav9330
    @praveshyadav9330 5 лет назад +1

    sir agar hmmediagonal aur breadth de ho to length kaise find Kate???

    • @WrathofMath
      @WrathofMath  5 лет назад +1

      Thanks for watching! I'm sorry, I'd like to help but I do not understand the question!

    • @TheBaffledZone
      @TheBaffledZone 5 лет назад +1

      @@WrathofMath Hey there bud! I can speak Hindi. I'll be your translator. He means "if we are given the diagonal and breadth then how do we find the length?"

  • @Psalms146
    @Psalms146 3 года назад

    2:23 “do a left what is a left?

  • @cassiecaitteladeza4732
    @cassiecaitteladeza4732 4 года назад

    THANKYOU SO MUCHHHHH!!!!!

    • @WrathofMath
      @WrathofMath  4 года назад

      You're very welcome! Thanks for watching!

  • @CYaN1101
    @CYaN1101 Год назад

    How can i find the measurement of the diagonal when half of the measurement is given

    • @CYaN1101
      @CYaN1101 Год назад

      Do i just multiply it by 2?

  • @gracekimeu4558
    @gracekimeu4558 9 месяцев назад

    ohh thanks alot ☺

  • @Iblamearchit
    @Iblamearchit 4 года назад +1

    Thank bro
    Binod

    • @WrathofMath
      @WrathofMath  4 года назад

      You're very welcome, thanks for watching!

  • @saihmingthangasailo5767
    @saihmingthangasailo5767 Год назад

    √l2+b2

  • @sadiecarreira7954
    @sadiecarreira7954 4 года назад

    Okay i get it but what if theirs like no numbers on the rectangle? My school paperwork doesn’t tell me what my lengths or widths are but I have to find the diagonal of the rectangle.. please help 😭

  • @sial3li344
    @sial3li344 3 года назад +1

    Mr thanks for explaining, Sir after I have found the diagonal how do I know which quantities are decreasing and which are increasing
    Thank you

    • @WrathofMath
      @WrathofMath  3 года назад +1

      Thanks for watching! I am not sure what your question is, could you clarify? What quantities are you talking about?

  • @lucky-ju1uw
    @lucky-ju1uw 4 года назад

    Nice

  • @zvi786
    @zvi786 2 года назад

    thankify

  • @ahs_ruth
    @ahs_ruth 4 года назад

    How to find l and b if only diagonal is given?

    • @WrathofMath
      @WrathofMath  4 года назад

      By l and b do you mean the sides of the rectangle? There is no way to find a unique solution to that if you only know the diagonal. If we call the diagonal d, and the sides a and b, then for any positive number b, a = sqrt(d^2 - b^2) would work. So there are infinitely many solutions. Does that make sense?

    • @ahs_ruth
      @ahs_ruth 4 года назад

      @@WrathofMath That's what I wanted to know. Thank you for your help

  • @vinsonmccullar1443
    @vinsonmccullar1443 4 года назад

    Oh thank you i think i get it.

    • @WrathofMath
      @WrathofMath  4 года назад

      Glad to hear it! Thanks for watching and let me know if you have any video requests!

    • @vinsonmccullar1443
      @vinsonmccullar1443 4 года назад

      @@WrathofMath OK

  • @Undying133
    @Undying133 4 года назад

    this was very helpful but your math terms are so complicated i had to google some words xD thanks anyways!

    • @WrathofMath
      @WrathofMath  4 года назад

      Thanks for watching! I’m glad you were able to figure it out, once we learn certain terms in mathematics it can make communicating about it much easier! Let me know if you ever have any video requests!

  • @lalaaudie
    @lalaaudie 4 года назад

    Bru where do you get 16+9 from

    • @WrathofMath
      @WrathofMath  4 года назад

      Thanks for watching and 16+9 is coming from the Pythagorean theorem. Recall this theorem states that, in a right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse (where the hypotenuse is the longest side and the legs are the sides that intersect at a right angle).
      When we draw the diagonal of a rectangle, we split it into two right triangles, that both have the diagonal as their hypotenuse. Thus, we can use the Pythagorean theorem to find the length of the diagonal from the sides of the rectangle - which are the legs of our right triangle. I think typing it out without pictures is a little confusing, but there's not much more I can do than type!
      In our case, the legs of our right triangle have lengths 3 and 4, thus we square them 3^2 + 4^2, to get 9 + 16, which equals 25 - the square of our hypotenuse (which is the diagonal of the rectangle). Since the square of our diagonal has a length of 25, the diagonal itself must be sqrt(25) = 5.
      I hope that helps some, but if not I'd recommend watching some other explanations or looking up an explanation on another site that you can read through with pictures - since pictures are vital to these explanations! Additionally, if you want to see a proof of the Pythagorean theorem, I recommend this proof I did while eating insects: ruclips.net/video/rw-OIl0RHpg/видео.html

  • @kennygarcia102
    @kennygarcia102 Год назад

    80 i need to reduce the hypotenus!! What is it if its 80?

    • @WrathofMath
      @WrathofMath  Год назад

      I'm not sure what you mean, could you rephrase?

  • @shashwatagrawal7245
    @shashwatagrawal7245 4 года назад

    Thank u Sir
    Anyone here becoz of the homework

    • @WrathofMath
      @WrathofMath  4 года назад +1

      Thank you for watching and you're very welcome!

  • @defy8988
    @defy8988 4 года назад

    I’m in elementary school what does all this mean

  • @quinnin2006
    @quinnin2006 2 года назад

    I have a geometry test next period, my teacher is not the one for me

    • @WrathofMath
      @WrathofMath  2 года назад

      Hope this helped, thanks for watching!

  • @ruchibhandari9606
    @ruchibhandari9606 Год назад

    Do it the reversed way

  • @allfive-starproducts
    @allfive-starproducts 3 года назад

    ❤️

  • @GracefulBanana
    @GracefulBanana 4 года назад

    Thanks but it didn't work because I had decimals

  • @kanikamosima6738
    @kanikamosima6738 3 года назад +1

    How to Find the Diagonal of Length a Square

    • @kanikamosima6738
      @kanikamosima6738 3 года назад +1

      Please help me please 🥺

    • @WrathofMath
      @WrathofMath  3 года назад +1

      Thanks for watching, and if you understand this video then you understand how to find the diagonal length of a square because squares are just special rectangles! Of course, it depends a bit on what information you already have. For example, here is a lesson on how to find the diagonal length from area of the square: ruclips.net/video/y1mL1oJPESw/видео.html

    • @kanikamosima6738
      @kanikamosima6738 3 года назад +1

      @@WrathofMath thanks 😊

  • @cooper2oo5
    @cooper2oo5 4 года назад

    I’m working on a math problem and it only gave me the area of the square, no width or length, and it tells me what’s the length of the diagonal? 💀💀💀💀💀 HELP ME

    • @WrathofMath
      @WrathofMath  4 года назад

      Thanks for watching and for the request, hope it helps! ruclips.net/video/y1mL1oJPESw/видео.html

  • @gangsters7612
    @gangsters7612 5 лет назад +1

    Please talk hindi

  • @yawa8448
    @yawa8448 2 года назад

    Could you do my homework? :)

  • @tommcdonald1746
    @tommcdonald1746 4 года назад

    I was following just fine until he stated c=5.

    • @WrathofMath
      @WrathofMath  4 года назад +1

      Thanks for watching and can I help clear that up for you? If you followed until that point, then we can just pick up at 25 = c^2. So, we know that c squared is 25, but we want to know c, not c^2, since c is the length of the diagonal. Since we know c squared is 25, to find c we ask "what number, when squared, equals 25?". The answer is 5, because 5^2 = 25. It is also true that (-5)^2 = 25, but we're interested in the positive solution (positive 5) because we assume our lengths have to be non-negative.
      Thus, since c is the number that, when squared, equals 25, we know c must equal 5.

    • @tommcdonald1746
      @tommcdonald1746 4 года назад

      @@WrathofMath that helps a lot. I am building a 12x16 storage shed and using these calculations my diagonal length is 20 feet which squares the corners. Thanks again.

  • @Arbindkashyap99.
    @Arbindkashyap99. 6 лет назад +2

    Rong

    • @WrathofMath
      @WrathofMath  6 лет назад +2

      What is wrong in the video?

    • @munmunpal5911
      @munmunpal5911 6 лет назад +3

      Hskdvjfkf
      Hdbkdif
      Hdhdhsfa
      Ten lack
      Travis. Y'all. Y'all Jack off jxvngdvdvdnbvdbdnfbfvxvnxvxvxvvxbcvcvxvdbdv CNN xvxvvxbdbd

    • @nunique1618
      @nunique1618 6 лет назад +4

      @@WrathofMath His grammar is wrong. LMAO.

    • @TheBaffledZone
      @TheBaffledZone 5 лет назад +2

      @@munmunpal5911 wtf?

  • @ashleyjimenez5112
    @ashleyjimenez5112 4 года назад

    Im dropping out😭 im slow and dont get this🤣

    • @WrathofMath
      @WrathofMath  4 года назад

      Don't drop out! It just takes some work to understand, and my explanation not being sufficient doesn't mean you're slow! Is there any lingering question I can help clear up to aid your understanding?

    • @absityvelasco9507
      @absityvelasco9507 4 года назад

      Where do u get 16? And 9? I'm alil confused myself

    • @ASHM8THEBOSS
      @ASHM8THEBOSS 3 года назад

      @@absityvelasco9507 2:08 at the bottom the equation is 4^2+3^2=c^2 4^2 means 4x4. 3^3 means 3x3. 4x4 is 16 and 3x3 is 9. Hope I helped.

  • @etoyamika1907
    @etoyamika1907 4 года назад

    This confuses me even more.

  • @terrysmith2896
    @terrysmith2896 Год назад

    Very poor explination, I taught construction in a prison setting

  • @alex.joe.my.way8966
    @alex.joe.my.way8966 Год назад

    How bout in feet , meaning fractions of an inch