Length of rectangularposter is 2x its width. If perimeter is 24 what is areaof rectangle

Answer 1

L = 2W

Perimeter P = 2(L + W) = 24

Substitute L = 2W in the perimeter equation, you get

2(2W + W) = 24

2(3W) = 24

6W = 24

W = 24 / 6 = 4

L = 2W = 2(4) = 8

Area A = L x W = 8 x 4 = 32