Find the perimeter of a rectangle with one side 9 cm long and the other 3 times shorter.

The perimeter of a rectangle is the sum of all sides, or the perimeter of a rectangle is the sum of the length and width of the rectangle multiplied by two. To answer the question of the problem, you need to know what the length of the other side of the rectangle is.

1) Determine what is the other side of the rectangle.

9/3 = 3 centimeters.

Let’s answer the question of the problem.

2) Let’s calculate what the perimeter of the rectangle is.

(9 + 3) * 2 = 12 * 2 = 24 centimeters.

Answer: The perimeter of the rectangle is twenty-four centimeters.