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Before I find the volume of the cone I want to convert the measurements to yards so that I obtain a volume in cubic yards. There are 3 feet in a yard so your conical pile has a base radius of 45.2/3 yards and a height of 12/3 yards. The volume of a cone is 1/3 π r^{2} h where r is the radius and h is the height. Thus the volume of the conical pile is
Contractors use the term yards to mean cubic yards so your pile of soil is approximately 951 yards. Penny  


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