# The width of the rectangle is 9 cm, which is 12 cm less than its length. Calculate the perimeter and area of this rectangle.

August 28, 2021 | education

| First you need to find how many centimeters the length of the rectangle is.

To do this, add another 12 cm to the specified value of the width.

Will:

9 + 12 = 21 cm.

In order to find out the perimeter of a rectangle, you need to multiply the sum of the width and length of the shape by 2.

We get:

2 * (9 + 21) = 2 * 30 = 60 cm.

The area of the rectangle will be equal to the product of the shape’s width by its length.

9 * 21 = 189 cm2

Answer: the perimeter of the rectangle is 60 cm, the area of the figure is 189 cm2 (square centimeters).

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