Question

If L=100 and b=209 . What is the perimeter of
Rectangle?

Answer 1

Perimeter=2 (l+b) =2 (100+209) =2×309 =618

Answer 2

LENGTH=100
BREADTH=209
PERIMETER=2[L+B]
                   =2[100+209]
                   =2[309]
                   =618 

YOU DID NOT MENTION UNITS