Question

A formula for finding the perimeter of a rectangle is p=2l+2wp=2l+2w. if you know the perimeter (p)(p) and width (w)(w) of a rectangle, which formula can you use to find the length (l)(l)?

Answer 1

p=2L+2W

L=(p-2W)/2

.................

Answer 2

Answer: $\dfrac{p}{2}-w$

Step-by-step explanation:

Given : A formula for finding the perimeter of a rectangle is $p=2l+2w$.

To derive the formula for length (l), we first need to subtract 2w on both sides, we get

$p-2w=2l$

Divide both sides by 2 , we get

$l=\dfrac{p-2w}{2}=\dfrac{p}{2}-w$

Hence, the formula can you use to find the length (l) =$\dfrac{p}{2}-w$