A
prism 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.
A prism with lateral faces and bases is a
right prism. Otherwise, it is is called an
oblique prism. The lateral faces of a prism can either be or . In an oblique prism, at least one lateral face must be a parallelogram. In contrast, in a right prism, all lateral faces are rectangles.
Prisms can be categorized by the shape of their bases. For example, a prism with a base is called a triangular prism. A rectangular prism, on the other hand, has a base.
The is the sum of its and the area of the two bases.