Question

The length of a rectangle is 40 inches. The width of the rectangle is 18 inches.What is the perimeter of the rectangle?

Answer 1

Hello there. To solve this question, we have to remember some properties about geometry.

First, given a rectangle with side length L and width W:

Parallel sides have the same length, hence its perimeter, given by the sum of the measures of all its sides, is equal to

`s=2L+2W`

In this case, we were given the side length and width of the rectangle:

`L=40\text{ in and }W=18\text{ in}`

Plugging the values, we get

`s=2\cdot40+2\cdot18=80+36=116\text{ in}`

This is the answer to this question.