5. At a construction site, a conical pile of earth is 18
ft high and has a radius of 7 ft at the base. The pile
must be hauled away by a small truck with a
capacity of 90 cubic feet. How many truckloads will
it take to transport the soil?
A.9 truckloads
b. 10 truckloads
C.11 truckloads
d. 12 truckloads