Answer :
The length is 12. The width is 18. The perimeter is 60.
Perimeter (p) =2x length (L) + 2x width (W). The W = L+6
P=5xL
5L=4L+12
L=12
Perimeter (p) =2x length (L) + 2x width (W). The W = L+6
P=5xL
5L=4L+12
L=12