Question

Choose the correct way to calculate the perimeter of the given shape?

• A. $AB+BC+CD+DE+EA+AF$
• B. $AB+BC+CD+DE+EA$
• C. $AB+BC+CD+DE+AF$
• D. $AB+BC+CD+DE$

Answer 1

The correct option is B $AB+BC+CD+DE+EA$

The perimeter of a shape is defined as the total distance around the shape.

To find the perimeter of the given shape, find the total distance around the shape.
Add all of the side lengths:
$AB+BC+CD+DE+EA$

As the side AF is not part of the outer boundary, it will not be included in the perimeter.

Hence, option(b.) is the correct choice.