When the cross-section is a hexagon, the prism is called a hexagonal prism. Image caption, The faces of a prism are the congruent polygon ‘ends’, plus the rectangles that join them.

For example, in the prism below, the cross section is a hexagon. This is called a hexagonal prism. Some 3D shapes, like cubes and pyramids, can be opened or unfolded along their edges to create a ...