A kind of grinding wheel, the outer circle diameter is 30 cm, the inner circle radius is 8 cm, the thickness is 10 cm, its volume is how many cubic centimeters

A kind of grinding wheel, the outer circle diameter is 30 cm, the inner circle radius is 8 cm, the thickness is 10 cm, its volume is how many cubic centimeters

15 * 15 * 3.14 * 10-8 * 8 * 3.14 * 10 = 5055.4 cm3