Question

A dance floor is in the shape of a rectangle. It is 21 meters long and16 meters wide. What is its perimeter?

Answer 1

Answer:

$P = 74\ meters$

Step-by-step explanation:

By definition the perimeter of a rectangle is the sum of the lengths of its 4 sides.

The formula for calculating the perimeter of a rectangle is as follows:

$P = 2w + 2l$

Where P is the perimeter, w is the width and l is the length.

In this case we want to find P and we know that:

$w =16\ meters$

$l =21\ meters$

Therefore:

$P = 2(16) + 2(21)$

$P = 32 + 42$

$P = 74\ meters$

Answer 2

Answer: The perimeter is 74 meters.

Step-by-step explanation:

21 plus 21 plus 16 plus 16 = 74