Question

The length of a rectangle is 4 in longer than its width.

If the perimeter of the rectangle is 40 in, find its area.

Answer 1

Answer: 396

Explanation:

length- x+4

width - x

perimeter = 40

40 = x+4+x

40-4=2x

36=2x

x=18

length - 18+4=22

width - 18

area = 22*18 = 396