Mark B. answered • 05/24/17
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When you see "square foot" (or "square feet"), think of the side squared, which is its area. To find out how big of a square, let's find the length of each side. (all four are equivalent). If the side squared is 160.2, then the length of a side will be the inverse, or the square root of 160.2. The side will be represented in "feet" as opposed to "square feet". Intuitively the square root of about 160 is about 40, which when multiplied by itself gives the square. So the answer to how big is the square is about 40 feet by 40 feet.
Mark B.
tutor
90 pavers can't be arranged in a square, so find out the next smallest number under 90 that is an even square. That will be the number of pavers on each side. Then multiply that by the length of 1 paver.
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05/24/17
Mark B.
tutor
... to get the length of a side. I'm assuming "how big" means the length of each side. So 81 is the next lowest square under 90, and 9 is its square root. So there are 9 pavers on a side, or 9*16 inches on a side. Divide that by 12 to get feet.
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05/24/17
Philip P.
40 X 40 = 1600
√160.2 = 12.66
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05/24/17
Joshua F.
We came up with 12 x 12 square using 81 pavers
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05/24/17
Mark B.
tutor
Well done!
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05/24/17
Joshua F.
05/24/17