Question

If the length and breadth of a rectangle is double d how many time s will the perimeter of the new rectangle be that of the original rectangle?

Answer 1

when length is  l  and breadth is b
perimeter of rectangle = 2(l+b)
now the condition is  l = 2l    and b = 2b
therefore perimeter = 2(2l+2b)
                                = 2(2(l+b))
it means when length and breadth are doubled of a rectangle then perimeter will also become doubled

Answer 2

Hey✌✌


let the length and width of rectangle be a and b

Perimeter = 2(a+b)

New length = 2a
New breadth = 2b

New perimeter = 2(2a+2b)
=. 4( a + b)


Hence , perimeter of new rectangle is 2 times that of original one .