balls.
http://wiki.answers.com/Q/What_is_the_definition_o...

A rectangular pyramid is one built on a rectangular base, with two sets of triangles forming the sides. Each set of triangles will be equal in side length and height, but will have
http://answers.ask.com/Science/Mathematics/what_is...

1. Draw a 6by8 rectangle in the center of the graph paper (6 squares in width and 8 squares in height) 2. Starting at the top left of the rectangle, count over to the right three
http://www.ehow.com/how_8631175_makerectangularp...

A rectangular pyramid looks like a 3D or 3dimensional rectangle. It is considered as a solid figure. A rectangular pyramid has a rectangular base with an apex.
http://www.ask.com/question/whatdoesarectangula...
