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

     example of  Lateral Faces
    The figure given above is a hexagonal prism and it has six lateral faces and two bases.

Video Examples: Angle between lateral faces of pyramid


Solved Example on Lateral Faces

Ques: 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.
       example of  Lateral Faces
    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.