Respuesta :

smayra1191

Step-by-step explanation:

Let the length be l and width be b

given , l = 2b - 1

and also,

perimeter of the rectangle = 2(l+b )

= 2 ( 2b - 1 + b )

= 2 ( 3b - 1 )

=( 6b - 2 ) unit !!