Perimeter of garden is 72 meters

Question

The perimeter of garden is 72 meters. The width of the garden is 4 meters less than its length. Find the length and the width of the garden.

Answer 1

Hi Stephanie,

let l = length of garden, w = width of garden

width is 4 meters less than length ==> w = (l-4)

perimeter = 2*(l+w) = 2*(l + (l-4))

perimeter = 72 ==> 72 = 2*(2l-4)

once you solve for l, subtract 4 from it to get w

hope it helps!

Answer 2

2 (l) + 2 (w) = 72

w = l - 4

2 (l) + 2(l-4) = 72

2(l) +2(l) - 8 = 72

4(l) = 80

l = 20m, and w = 16