is a object created by connecting a with a version of the same polygon, to vertex. The two parallel polygons are called bases
. The other are called lateral faces
. The intersection of two lateral faces is called a lateral edge
In a prism, the lateral faces can be or . In an oblique prism
, at least one lateral face is a parallelogram. In a right prism
, the lateral faces are rectangles.
The shape of the base can be used to name the prism. For example, a prism with a triangular base is called triangular prism. A rectangular prism, on the other hand, has a rectangular base.
The is the sum of its and the area of the two bases.