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The surface area of a cube = 6 x y2 ; y is the cube length

For a 9 cubic yard concrete = 9 x 27 cubic feet = 243 cubic feet

The cube side = (243)1/3

Accordingly the cube surface area = 6 x (243)2/3 square feet

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10y ago

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9 yds * 9 yds = 9*3 ft * 9*3 ft = 27*27 sq ft = 729 sq ft

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15y ago
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Q: How many square feet is 9 cubic yards of concrete?
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