Difficult# Volume of Frustum

ACTMAT-1XJJLH

The figure below is that of a frustum (truncated cone), whose top (circular) base is parallel to the bottom base.

If the radii of the top and bottom bases of the frustum are 4 cm and 6 cm, respectively, and the height is 12 cm, what is the volume of the frustum, in cubic centimeters?