Question

Use the perimeter formula P = 21 + 2w to find the length, 1, of a rectangular lot if the width, w, is55 feet and the perimeter, P, is 270 feet.

Answer 1

Given:

The width of a rectangle = W = 55 feet

And the perimeter of the rectangle = P = 270 feet

We will find the length (L) of the rectangle using the perimeter formula:

`P=2L+2W`

So, substitute with P and W, then solve the equation to find L

The steps will be as follows:

`\begin{gathered} 2L+2\cdot55=270 \\ 2L+110=270 \\ 2L=270-110 \\ 2L=160 \\ L=(160)/(2)=80 \end{gathered}`

So, the answer will be The length L = 80 feet