3 years ago

A rectangle's length is 1 less than twice its width.Write an expression for the perimeter.

Mathematics

1 answer:

Artyom0805 [142]3 years ago

5 0

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 !!

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