Prisms and Pyramids

An interesting relationship exists between the volume of a cylinder and the volume of a cone that has the same height and same base area, namely, the volume of the cylinder is three times the volume of the corresponding cone. That same relationship exists between the volume of a prism and the volume of its corresponding pyramid.

These objects I've uploaded can be used with students to demonstrate this relationship. For example, if you fill the cone with water, sand, or rice, and then empty th