I need help on this

Question

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

Answer 1

The perimeter is the distance around the outside.

A parallelogram has opposite sides parallel and same length

P = 2L + 2W

 

2L + 2W = 72

W = L-4

 

Replace W with 'L-4' in the first equation to find the length

 

2L + 2(L-4) = 72

2L + 2L - 8 = 72

4L = 80

L = 20

 

W = L-4 = 20-4 = 16

 

The length is 20m and the width is 16m