Question

The length of a rectangle is 4 centimeters longer than the width of the rectangle. The perimeter of the rectangle is 88 centimeters. What us the area of the rectangle, in square centimeters?​

Answer 1

Perimeter P = 2L + 2W = 88

We also have L = W + 4

Now substitute this into the first equation and get

2(W + 4) + 2W = 88

2W + 8 + 2W = 88

4W + 8 = 88

4W = 80

W = 20 cm

L = 24 cm