lateral faces


Definition of Lateral Faces

  • The faces that join the bases of a solid are called Lateral Faces.

More about Lateral Faces

  • Lateral faces do not include the bases of a solid.

Example of Lateral Faces

  • The figure given above is a hexagonal prism and it has six lateral faces and two bases.

Solved Example on Lateral Faces

How many lateral faces does a regular pentagonal prism have?
Choices:
A. 5
B. 7
C. 2
D. 6
Correct Answer: A
Solution:
Step 1: A regular pentagonal prism looks like the figure given below.

Step 2: It has two parallel and congruent pentagonal faces called bases.
Step 3: The faces that join the bases of a prism are called lateral faces.
Step 4: Five rectangles join the bases (pentagons) of a pentagonal prism.
Step 5: So, a regular pentagonal prism has 5 lateral faces.

Related Terms for Lateral Faces

  • Base
  • Face
  • Prism
  • Pyramid
  • Solid