Question

The length of a rectangle, I, is six meters more than it's width, w. If the perimeter of the rectangle is 36 meters what is the length of the rectangle, in meters

Answer 1

Length = 12 meters

Explanation:

Rectangle

Perimeter P = 2(L + W)

The length of a rectangle, I, is six meters more than it's width, W.

Then L = W + 6

So

P = 2(W + 6 + W)

P = 2 (2W + 6)

P = 4W + 12

Plug in P = 36 meters

36 = 4W + 12

4W = 36 - 12

4W = 24

W = 6 meters

L = 6 + 6

L = 12 meters