The links to know it is below.
http://wiki.answers.com/Q/What_is_a_square_based_p...

A square pyramid is a pentahedron consisting of a pyramid with a square base. Thanks for
http://www.chacha.com/question/whatisasquarepy...

1. Start with a cube. Remember a cube has all sides of equal lengths. 2. Remember when calculating the volume of a cube, multiply the base, height and length together. Since each
http://www.ehow.com/how_2040925_calculatevolumes...

They are polyhedra. They have [at least] one square face.
http://wiki.answers.com/Q/How_is_a_square_pyramid_...
