RAM231
  • RAM231
How do you find diagonals of a rectangle? are they the lines that go from corner to corner across the middle?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Landon34
  • Landon34
Yes I think that is true.
anonymous
  • anonymous
You can use pythagorean theorem And yes that is true
anonymous
  • anonymous
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RAM231
  • RAM231
is the pythagorean theorem basically like a2+b2=c2? And i have the length of 36 and diagonals of 39.
anonymous
  • anonymous
If you know the 2 legs you know the diagonals.
anonymous
  • anonymous
So to do that problem you would rearrange the equation to c^2-a^2=b^2
RAM231
  • RAM231
how do I find the area though? thats the confusing part
anonymous
  • anonymous
Once you get the other leg it's just length x width
RAM231
  • RAM231
I'm confused. so I have the length of 36 and the hypotenuse of 39. so I just do 39^2 - 36^2 and that answer would be the other length and then I would just have to do length x width?
anonymous
  • anonymous
Well after you do 39^2-36^2 you would take the square root of that and that would give you the leg and the rest is correct
RAM231
  • RAM231
ok. ill try it
RAM231
  • RAM231
I still don't get it....
RAM231
  • RAM231
@zepdrix
anonymous
  • anonymous
because \[39^2-36^2=c^2\rightarrow225=c^2\] so to get c you would have to take the square root
RAM231
  • RAM231
okay is it 540?
anonymous
  • anonymous
Yes it is
anonymous
  • anonymous
Sorry that equation was a bit confusing should've said b instead of c
anonymous
  • anonymous
Make sure you put 540 units squared
RAM231
  • RAM231
well it only gives me a choice of 540. I can't square it.

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