Can someone explain the steps to solve

Question

The object below was by placing a cone on top of a cylinder. The base of the cone is congruent to the base of the cylinder

cone = 3cm height

cylinder = 10cm height

Cylinder = 4cm radius

What is the volume, in cubic centimeters of the object?

A.32π

B. 40π

C. 44π

D. 128π

Answer 1

volume = volume of cylinder + volume of cone

volume of cylinder = PI * R^2 * H = PI * 16 * 10 = 160 PI

volume of cone = 1/3 * PI * R^2 * H = PI * 16 * 3 = 48 PI

total volume is 208 PI