a rectangle has a perimeter of 32cm. one side measures 5cm. calculate the area of the rectangle.show your working.

Answer 1

2l + 2w = 32
l + w = 16 , but w = 5 (or l=5, if you prefer)
l+5 = 16
l = 11

area = lw = 11(5) = 55 cm^2

Answer 2

P = 2L + 2W
32 = (2 * 5) + 2W
32 = 10 + 2W
22 = 2W
11 = W

A = LW
A = 5 * 11
A = _______ square centimeters