A pile of sand at a concrete plant is a cone shape. It is 15 meters high, and the circular base has a diameter of 40 meters. What is the volume of this sand, in cubic meters?
Use the formula for the volume of a cone from the formula sheet. The height is 15 meters. Given the diameter is 40 meters, the radius is 20 meters. Using 3.14 for $6418_w11_h8.png$ gives $1835_w572_h37.png$