Question

The length of a rectangle is 8 feet longer than the width. If the perimeter is 80 feet, find the length and width of the rectangle

Answer 1

perimeter = 2L + 2W

 L=8+w

perimeter = 2(8+w) +2w

80 =16+2w+2w

80 = 16 +4w

64 =4w

w=64/4 = 16

 l=16+8 =24

 length = 24 feet

width = 16 feet

 check 2(24) +2(16) = 48 + 32 = 80