SOLUTION: What is the approximate length of the diagonal of a square that has a perimeter of 36 inches?

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Question 306065: What is the approximate length of the diagonal of a square that has a perimeter of 36 inches?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
4x=36
x=9
2s^2=d^2
2*81=d^2
162=d^2
sqrt(161)=d
9*sqrt(2)=d
12.73=d