Question

The perimeter of a rectangle is given by the formula P = 2W +2L, where w is the width and l is the length. We arrange the formula for the length(l).

Answer 1

To find:

The formula for the length, l, of the rectangle.

Solution:

The perimeter of the rectangle is given by P = 2w + 2l.

Now, we have to isolate l and solve:

`\begin{gathered} P=2w+2l \\ P-2w=2l \\ (1)/(2)P-w=l \end{gathered}`

Thus, the first option is correct.