60 square feet
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x2 - x10 + x5 - x12 - x3
Area of square = x2 where x is the length of each side. So x2 = 81 sq ft x = sqrt(81) ft = 9 ft
If a cube has sides of length x inches, its surface area is 6*x2 sq inches. So 6*x2 = 96 x2 = 16 so that x = 4 inches = 4/12 feet = 1/3 ft. Then the volume is (1/3)3 = 1/27 cubic feet.
Let the side length of the cube be x:- Surface area: 6*x2 = 726 square feet Divide both sides by 6 and then square root both sides. x = 11 feet Volume: 11*11*11 = 1331 cubic feet
add them all then divide by 4 then multiply x2