Question

The area of a rectangular living room is 99 square feet. The width of the room is 9 feet. What is the perimeter of the room?

Answer 1

First find the length of the room by dividing the area by the width:

99 / 9 = 11

2 walls would be 9 feet and 2 walls would be 11 feet.

Perimeter is the sum of the 4 walls:

11 + 11 + 9 + 9 = 40 feet