12 x 7 x 1/3 = 28
12 in = 1 ft area = length x width = 31 ft x (7 + 7 ÷ 12) ft = 235 1/12 sq ft ≈ 235.083 sq ft
Area of a rectangle = L x WA = 7 x 5A = 35 ft²
pi x 15 x 15 = 225 x 22/7 = 707 & 1/7 sq ft.
Area of a triangle = (base x Height)/2 = 7 ft x 15 ft/2 = 105/2 sq ft= 52.5 sq ft
2 ft^3 lets say that the volume is 1 ft x 1 ft x 2 ft the area of one side 1 ft x 2 ft = 2 ft^2 the area of one end is 1 ft x 1 ft = 1 ft^2 4 sides 2 + 2 + 2 +2 2 ends 1 + 1 would give a surface area of 10 square feet. The question is does this change if the volume is shaped like a cylinder or a sphere etc?
Your answer would be 1,176 square feet ...here's how. Your equation is 1/3 (length x width x height) 1/3 (12 x 3.5 x 7) 1/3 (3,528) 1,176 square feet Hope this helped you out! Good luck.
32 cubic feet
If you meant: How does one measure the area of a circle in Sqft, The formula is: Pi x Radius in Ft squared. i.e. Area of circle in SqFt. =(22/7) x Radius in Ft x Radius in Ft.
224 ft3
105 square feet in area.
You will need 100 of them, but they are rectangles, not squares.