How to Find the Diagonal Length of a Rectangle
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- Опубліковано 9 лип 2017
- What does it mean to find the diagonal of a rectangle? Generally, finding the diagonal of a rectangle means to find the length of the rectangle diagonal. In this video we go over how to do just that. We find the diagonal length of a rectangle, and mention the rectangle diagonal formula for finding the length of any generic rectangle diagonal. As you might expect, it uses the Pythagorean Theorem.
Finding Rectangle Diagonal Example Problems: • How to Find Rectangle ...
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Check out my new math rap channel if you're looking to bump some tunes! 🔥 ua-cam.com/video/L68v_W40SYo/v-deo.html
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 :)
@Andrew Jalen Yea, I have been using InstaFlixxer for since december myself :D
these bots... i've seen these 2 eveywhere
Doing this since this online school thing got me going crazy
Thanks for watching and I hope it helped! Good luck continuing the online learning; let me know if you ever have any lesson requests!
Bruh same
Exactly
Same
same
oh my god thank you-
this has saved me-
Thanks for watching and you're welcome! I am glad it helped!
Probably a big goof of myself that I didn’t realise that you calculate it with the plain old Pythagorean theorem.
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: ua-cam.com/video/rw-OIl0RHpg/v-deo.html
When Yoda stated, "That is why you fail", he was talking to me.
thank you so much !! this helps so much and i understood it easily !
So glad to hear it, thanks for watching and let me know if you ever have any lesson requests!
Thank very much for this video. I saw this video 2hrs before yearly exam
You're very welcome, thanks so much for watching and good luck on the exam!
Same
I've looked for so many vids but this one was so easy to understand, thank u!
Glad to help!
Thank you, I’m in seventh and I feel as if I should know this; now you taught me!
So glad it helped! Thanks for watching!
Yeah! Thanks so much just found out that I had a question in my workbook about this and now I know this! :)
Thanks for such a good video, Anyone doing work during the quarantine?
You're welcome and thanks for watching, Joshua!
Thanks this was an amazing video to help me on a topic i didnt understand
Thanks for the refresher! Great video!
Thank you!
@@WrathofMath You're welcome!
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.
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.
I am glad it helped! Thanks for watching!
Thank you so much this helped a lot and i understand how to do this now
You're very welcome, I am glad it helped!
These types of channels are the most helpful
Thanks for watching! Glad it's helpful!
For example sir a(2.447) b(1.515) how to find c??? Please explain sir
Thanks for watching and good question! I answer your question in this new video: ua-cam.com/video/lP4kTCDB58E/v-deo.html around the 9:38 mark
Thank you so much wrath math...
You literally saved... 🙌
You're very welcome, it is my pleasure! Thanks for watching!
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!
Happy to help!
Thank you so much MR
Thanks man this was so clear it really helped
Glad to hear it!
It is a good video
Thank you for your comment and for watching!
Thanks I’m doing summer classes and the videos aren’t making sense but this one has helped me
Awesome, thanks for watching and good luck!
i apriciate u for this man🙏🙏🙏
Thank you so much... was in so much trouble.. 😊
You're very welcome, I'm glad it helped!
Thank you. Helped me alot with school works
Glad it helped, thanks for watching! If you're studying geometry, you may be in the mood to vibe to the circle song: ua-cam.com/video/zj6YKOCrS74/v-deo.html
Nicely explained. Thank you. Can i ask what the tune at the end of the video is??
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: ua-cam.com/users/SeanEMusicvideos
Thanks for the review lesson.
My pleasure - thanks for watching!
Thanks finally understood!!
Thanks for watching! I'm glad it helped!
Thanks 😘
Thanks for the like
how did u get the 4 an 3
Thank you 👍🏻
You’re welcome!
im 8th grade and i didn't even know this 😭😭 THANK U SO MUCH
uhm just a question how did you get 16 and 9 ??
Thanks a lot!🙏🏼❤❤❤
You're welcome! Thanks for watching!
Thank you!
You're welcome!
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 😭
Thanks bro for helping me
Wow thank you! ❤
Glad to help!
VERY HELPFUL SIR
Glad to hear that! Thanks for watching!
thank you for this online classes are so hard
Glad it helped! Keep working hard and I hope you'll do well in your courses! Let me know if you have any questions!
this was helful
Thanks sir for telling how to get perimeter from diagonal and length , my exam's are here thanks sir
You're very welcome, I am glad it helped! Thanks for watching!
ThNks for this useful video now l learned how to find diagonals
Glad to hear it, thanks for watching!
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
Thank you v much 💛💛
No problem, thanks for watching!
how can i get to find the perimeter of a diagonal rectangle if it has a measurement of the diagonal and the width also🤓
How did you get the 5
Quick ans easy 👍
thank youuu saved my life
Glad to help!
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
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?
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.
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
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.
@@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?
sir agar hmmediagonal aur breadth de ho to length kaise find Kate???
Thanks for watching! I'm sorry, I'd like to help but I do not understand the question!
@@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?"
THANKYOU SO MUCHHHHH!!!!!
You're very welcome! Thanks for watching!
Thankyou sir
Thank you
Glad to help!
Thank u 😊🤗
You're very welcome, thanks for watching!
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 😊
Thanks Bruh 🙏🙏
No problem, thanks for watching!
@@WrathofMath love from India buddy 😍
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.
(base)2=(altitude)2+(hypotenuse)2
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
Thanks for watching! I am not sure what your question is, could you clarify? What quantities are you talking about?
Whoa… brought me back to high school!
Thanks for watching!
Nice
Thank you!
Its useful in grade 8 Cambridge board
ohh thanks alot ☺
Most welcome 😊
thankify
Welcomification!
tysm
Glad to help!
Don't know how the theory works, but it helped me nevertheless
Glad to help, thanks for watching!
How can i find the measurement of the diagonal when half of the measurement is given
Do i just multiply it by 2?
2:23 “do a left what is a left?
Thank bro
Binod
You're very welcome, thanks for watching!
√l2+b2
Bru where do you get 16+9 from
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: ua-cam.com/video/rw-OIl0RHpg/v-deo.html
this was very helpful but your math terms are so complicated i had to google some words xD thanks anyways!
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!
Oh thank you i think i get it.
Glad to hear it! Thanks for watching and let me know if you have any video requests!
@@WrathofMath OK
How to find l and b if only diagonal is given?
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?
@@WrathofMath That's what I wanted to know. Thank you for your help
How bout in feet , meaning fractions of an inch
80 i need to reduce the hypotenus!! What is it if its 80?
I'm not sure what you mean, could you rephrase?
I’m in elementary school what does all this mean
❤️
Thanks for watching!
@@WrathofMath you're welcome keep sharing!
Do it the reversed way
Thanks but it didn't work because I had decimals
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
Thanks for watching and for the request, hope it helps! ua-cam.com/video/y1mL1oJPESw/v-deo.html
I have a geometry test next period, my teacher is not the one for me
Hope this helped, thanks for watching!
Thank u Sir
Anyone here becoz of the homework
Thank you for watching and you're very welcome!
Im dropping out😭 im slow and dont get this🤣
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?
Where do u get 16? And 9? I'm alil confused myself
@@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.
How to Find the Diagonal of Length a Square
Please help me please 🥺
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: ua-cam.com/video/y1mL1oJPESw/v-deo.html
@@WrathofMath thanks 😊
Please talk hindi
Rong
What is wrong in the video?
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Ten lack
Travis. Y'all. Y'all Jack off jxvngdvdvdnbvdbdnfbfvxvnxvxvxvvxbcvcvxvdbdv CNN xvxvvxbdbd
@@WrathofMath His grammar is wrong. LMAO.
@@munmunpal5911 wtf?
Could you do my homework? :)
This confuses me even more.
I was following just fine until he stated c=5.
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.
@@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.
Very poor explination, I taught construction in a prison setting