SOLUTION: What is the lenght of the diagnal corners in a squre measuring 15meters by 15meters. Thank you, Doug

Question 715260: What is the lenght of the diagnal corners in a squre measuring 15meters by 15meters.
Thank you,
Doug
Answer by Simnepi(216) (Show Source): You can put this solution on YOUR website!
Hi Doug
to find the diagonal of a square
we use pythagoras' theorem.
Draw a square and draw in the diagonal! look for the triangle!
Pythagoras theorem is where and and b are the lengths of the short sides and c is the length of the hypotenuse.
so, substituting values we get

therefore

to find c we take square roots i.e.

using a calculator we find
c=21.21 m to 2 decimal places
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