A pyramid is a 3D shape with a flat base, and triangular edges that meet at a point. The base of the pyramid can be any polygon. A glass sculpture in the shape of a square based pyramid is to be made.

A prism has a constant cross-section throughout its length. When the cross-section is a triangle, the prism is called a triangular prism. When the cross-section is a hexagon, the prism is called a ...