The answer depends on the depth to which the area is covered.
If it is the same as concrete it will cover 162 square feet. concrete covers 81 square feet by 4" deep
25 cubic feet or about 1 cubic yard.
100' x 200' x 1/3' = 6666.66... recurring cubic feet.
1 acre = 43,560 square feet At 1/2-ft deep, that's (43,560 x 1/2) = 21,780 cubic feet 27 cubic feet = 1 cubic yard 21,780 cubic feet = 806 2/3 cubic yards
2 inches = 1/6 foot Volume = 3,500/6 = 5831/3 cubic feet = 21.605 cubic yards
1 cubic yard equals 27 cubic feet. At a six inch depth 1 cubic foot will cover 2 square feet, so 27 cubic feet will cover 54 square feet.
100 cubic feet for every foot of depth.
240 x 3 /12 Cubic feet = 60 cubic feet
A 1 cubic foot bag will cover 12 square feet at a depth of 1" A 1.5 cubic foot bag will cover 18 square feet at a depth of 1"
Volume = (base area) x (height) = 300 cubic feet = 111/9 cubic yard.
One cubic yard of rock will cover an area of 81 square feet at a depth of 6 inches.
Technically, none. A square foot is a measure of area whereas it is the volume of water that is required. To convert from area to volume it is necessary to know the depth. A twelfth of a cubic foot will cover an area of one square foot to a depth of 1 inch. A cubic foot will cover it to a depth of 1 foot, 100 cubic feet will cover it to a depth of 100 feet.
100 cubic feet is a volume, not an area. Consequently the question is misguided.
Volume = 12 X 20 X 1/3 = 80 cubic feet Cubic yards = 80/27 = 2.96
200 cubic feet or 7.4 cubic yards
You will need 1500 cubic feet.
about 17 yards of concrete (it's sold by the cubic yard)