Quandaries
and Queries |
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Hi, We are filling in a hole left by the removal of an aboveground pool that was dug into the ground. The diameter is 25' across and the depth is 5'. I wondered how many cubic yards of dirt will be needed to fill this hole. Thanks, Mike |
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Hi Mike, I would first put the dimensions into yards. There are 3 feet in a yard so you need to divide 25 and 5 by 3 to get a diameter of 8.33 yards (radius of 4.17 yards) and a depth of 1.67 yards. The hole is in the shape of a circular cylinder and the volume of a cylinder is given by
so you have
Penny |