22/7x6x6x6 cubic inches
Half a cubic foot.
An area 10 foot x 10 foot is 100 square feet. 100 cubic feet of sand would cover it with a one foot deep layer of sand. If the sand needs to be 6 inches deep, then 50 cubic feet are be needed, or 25 cubic feet if the sand is to be 3 inches thick.
It depends on how deep it is. If it is 6 inches deep, you will need 77 yards.
330.78 ft3
22/7x6x6x6 cubic inches
33.5 cubic feet.
enough
Half a cubic foot.
An area 10 foot x 10 foot is 100 square feet. 100 cubic feet of sand would cover it with a one foot deep layer of sand. If the sand needs to be 6 inches deep, then 50 cubic feet are be needed, or 25 cubic feet if the sand is to be 3 inches thick.
It depends on how deep it is. If it is 6 inches deep, you will need 77 yards.
You will need 1500 cubic feet.
330.78 ft3
if you mean a 30 foot diameter circle, then pi x 152 x 3 = 2119.5 cubic feet of dirt
112 cuft
2.37 cubic yards of stone for every 3 inches deep it needs to be
There are 12 inches in a foot