Prism
Definition of Prism

• A prism is a polyhedron consisting of two parallel, congruent faces called bases.

More about Prism

• A prism is named by the shape of its base.
• Triangular Prism: A Prism with triangular bases is a Triangular Prism.
• Rectangular Prism: A Prism with rectangular bases is a Rectangular Prism.
• Cube: A prism with square bases is a cube. All six faces of a cube are squares.
• Pentagonal Prism: A Prism with pentagonal bases is a Pentagonal Prism.
• Hexagonal Prism: A Prism with hexagonal bases is a Hexagonal Prism.
• Octagonal Prism: A Prism with octagonal bases is an Octagonal Prism.

Examples of Prism

• The following figure shows a few prisms.

Solved Example on Prism

An octagonal prism has ____.
Choices:
A. one vertex
B. eight congruent faces and one base
C. six congruent lateral faces
D. eight lateral faces that are congruent
Correct Answer: D
Solution:
Step 1: An octagonal prism has eight lateral faces that are congruent and two parallel congruent octagonal bases.

Related Terms for Prism

• Polyhedron
• Congruent
• Face
• Base
• Parallel

Additional Links for Prism

• Click here for samples
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