The length of a rectangle is 8 metres less than twice its breadth. If the

perimeter of the rectangle is 56metre, find its length and breadth.

L=2b-8

Perimeter=2 (l+b)
2 (2b-8+b)=2 (3b-8)
6b-16=56
6b=72
B=12
L=2×12-8=24-8=16
L=16