A Polyhedron with two congruent Polygonal faces and all remaining faces Parallelograms. The 4-prism is simply the Cube. The simple prisms and antiprisms include: decagonal antiprism, decagonal prism, hexagonal antiprism, hexagonal prism, octagonal antiprism, octagonal prism, pentagonal antiprism, pentagonal prism, square antiprism, and triangular prism. The Dual Polyhedron of a simple (Archimedean) prism is a Bipyramid.

The triangular prism, square prism (cube), and hexagonal prism are all Space-Filling Polyhedra.

**References**

Beyer, W. H. (Ed.) *CRC Standard Mathematical Tables, 28th ed.* Boca Raton, FL: CRC Press, p. 127, 1987.

Cromwell, P. R. *Polyhedra*. New York: Cambridge University Press, pp. 85-86, 1997.

Weisstein, E. W. ``SolidGeometry.'' Mathematica notebook SolidGeometry.m.

© 1996-9

1999-05-26