SOLUTION: Tom is building a shed in his backyard. The foundation is a square with the area of 81 square feet. What is the length of the side?

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Question 1127299: Tom is building a shed in his backyard. The foundation is a square with the area of 81 square feet. What is the length of the side?
Found 3 solutions by math_helper, josmiceli, Alan3354:
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
+A=s%5E2+ —> +s+=+sqrt%28A%29+

+sqrt%2881%29+=+9+ —> each side is +highlight%28+9ft+%29+

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The sides are equal
+sqrt%2881%29%2Asqrt%2881%29+=+9%2A9+
Area = +9%2A9+
each side is +9+ ft long

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Is it not obvious that it's 9 feet?
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PS 2 + 2 = 4