Answer: L=P/2-W
Explanation:
The definition of a perimeter is the total distance around a polylon. That means you add all of the side together to find the total distance of a polygon.
First we use the formula of the perimeter of the rectangle. In a rectanble, there are two sides that are L lenght and there are two sides that are W, width.
Then we from the perimeter which is W+W+L+L. Then you combine like terms. W+W+L+L=2W+2L=P
Now you are ready to solve to L.
2L+2W=P
2(L+W)=p
L+W=P/2
L=P/2-W
