SOLUTION: Susan is attending to construct a square table with each side like equaling 3 feet. To check her work, Susan measures the diagonal of the square when she's finished constructing t

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Question 981071: Susan is attending to construct a square table with each side like equaling 3 feet. To check her work, Susan measures the diagonal of the square when she's finished constructing the table. What should the diagonal be if the side lanes are indeed 30 feet.
A. 3 feet
B. 4.24
C. 12.72
D. 9 feet

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Isosceles Right Triangle

d%5E2=3%5E2%2B3%5E2
d=sqrt%2818%29
d=sqrt%282%2A3%2A3%29
d=3sqrt%282%29

What do you mean, "lanes"?