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All 4 sides of a square are of the same length.

The formula for the area of a square is s*s = area where s is the length of one side of the square.

s^2 = 81

s = 9 or -9

-9 does not apply here but 9 does.

Each side of the square deck is 9 feet long.

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Marcus Won

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josiahr86

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50 feet

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Q: The area of a square deck is 81 feet. How long is each side of the deck?
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