Question

The length of a rectangle 2 less than 2 times the width. The perimeter is 116ft. Find

the length and width.

Answer 1

Answer: w = 20 l = 38

Explanation:

l = 2w - 2 (based on given info)

p = 2l + 2w (formula for perimeter)

p = 116 (given)

116 = 2l + 2w

116 = 2(2w-2) + 2w (substitute in l)

116 =‘ 4w-4 + 2w

116 = 6w-4

w=20

l=2(20) - 2 = 38