Question

If the legenth and breadth of a rectangle are doubled how many times the perimeter of the new rectangle be ​

Answer 1

Answer:

it will be = 4 ( l + b ) .

Step-by-step explanation:

since we that perimeter of the rectangle = 2 ( l + b )

here in the given question l = 2l

                                     the b   = 2b

the if we keep in our  equation we will

get perimeter of the rectangle = 2 ( 2l + 2b ) = 2 ( 2 ( l + b )  = 4 ( l + b )