Question

A rectangle has a length that is 4 times the width, w. If the perimeter of the rectangle has a perimeter of 40

feet, what is the length of the rectangle?

Answer 1

Answer: 16cm

Explanation:

l = 4w

2l + 2w = p

2(4w) + 2w = 40

8w + 2w = 40

10w = 40

w = 4 cm

l = 4w = 4(4) = 16cm