anonymous
  • anonymous
if the length of a diagonal of a square is 18, what is the diameter of the circle inscribed in the square?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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zepdrix
  • zepdrix
|dw:1450048308505:dw|
anonymous
  • anonymous
OMG WHY DID I EVEN ASK THAT
zepdrix
  • zepdrix
Notice something interesting, the diameter is actually the same length as the `side length` of the square!

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zepdrix
  • zepdrix
oh you figure it out? XD
anonymous
  • anonymous
YES! You are amazing. Thank you so much. May you help me with another problem? It's simple too.
zepdrix
  • zepdrix
sure
zepdrix
  • zepdrix
What did you get for the square problem? It was something like 9sqrt(2) right?
anonymous
  • anonymous
Ohh, I'm supposed to put it into radical form? I thought the answer was simply "18". IDK
zepdrix
  • zepdrix
No, that's not the diameter, see how it extends outside of the circle :o
zepdrix
  • zepdrix
|dw:1450048669738:dw|This middle line could be our diameter. And notice that it's the same length as the side of the square.
zepdrix
  • zepdrix
So all you need to do is find the side length of the square.
zepdrix
  • zepdrix
|dw:1450048714646:dw|Since it's a square, all side lengths are the same. Label your diagonal as was given, and solve for x using Pythagorean Theorem.
anonymous
  • anonymous
Ohh, that's why it's 9sqrt(2)
anonymous
  • anonymous
Thank you sooooooo much
zepdrix
  • zepdrix
cool c:
anonymous
  • anonymous
I'll post the other question I had and tag you or something so you can get more points or whatever :^D
zepdrix
  • zepdrix
ya whatever you want :d

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