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

 

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