Prisms with other bases
Any polygon can be the base for a prism. Here are some examples.
A pentagonal prism is made up of two pentagons and five rectangles.
A pentagonal prism could also be called a heptahedron. Hepta means seven.
A hexagonal prism is made up of two hexagons and six rectangles.
A hexagonal prism could also be called an octahedron. Octo means eight.
An octagonal prism is made up of two octahedrons and eight rectangles.
An octagonal prism could also be called a decahedron. Deca means ten.