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How many cubic feet of gravel will be needed to fill a circular area 14 feet across and 3 inches deep show you how to work this please?
Wiki User
∙ 12y ago
The formula for the volume of a cylinder is V=pi*r2*h.
r=d/2 = 14ft/2 = 7ft, r2 = 49ft2. h = 3 inch/(12inch/ft) = 0.25 ft.
so V = pi*49ft2*.25ft = 38.48ft3.
Wiki User
∙ 12y ago
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