Question

The area of a rectangle is 276.9 m². If the length is 15 m, what is the perimeter of the

rectangle?

Answer 1

`66.92\:\mathrm{m}`

Explanation:

The area of a rectangle is given by
`l\cdot w` where
`l` is the length of the rectangle and
`w` is the width of the rectangle. Therefore, based on the information given, we can write the following equation to solve for the width:

`15\cdot w=276.9,\\w=(276.9)/(15),\\w=18.46\:\mathrm{m}`.

The perimeter of a rectangle is given by
`p=2w+2l`. Therefore, the perimeter of the rectangle is:

`2(15)+2(18.46)=\fbox{$66.92\:\mathrm{m}$}`.