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The area of a square deck is 81 square feet. How long is each side
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The area of a square deck is 81 square feet. How long is each side
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Jan 17, 2017
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The area of a square deck is 81 square feet. How long is each side
Mathematics
middle-school
Rich Sutton
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Rich Sutton
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All you need to do is find the square root of 81, because the formula for the area of square is
.
The square root of 81 is 9 ( 9 x 9 = 81)
To double check, plug 9 into the formula.
area =
area =
area = 81
So, therefore, each side is 9ft.
Guinaps
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Jan 19, 2017
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Guinaps
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The formula for the area of a square is:
A=s²
Since we known that the area is 81ft², we can solve for the length of a side.
A=s²
81=s²
find the square root of both sides
9ft=s
The length of each side is 9ft
Johny Why
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Jan 22, 2017
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Johny Why
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