Question

The length of a rectangle is twice the width. if the perimeter of the rectangle is 24, what is the area of the rectangle?

Answer 1

Let L be length and W be width.

L = 2W
And our perimeter is 2L + 2W.  Substitute L to get:

2*(2W) + 2W = 24
4W + 2W = 24
6W = 24
W = 4
That means L equals 8.

So our area of the rectangle is L*W or 8*4 = 32 units squared