Question

If the length and breadth of a urectangle are doubled how many times the perimeter of the old rectangle will that of the new rectangle be

Answer 1

Answer:

Step-by-step explanation:

Let length be l and breadth be b.

: .perimeter =2(l+b)

Length and breadth of new rectangle will be 2l and 2b respectively.

New perimeter=2(2l+2b)

=4(l+b)

:. P(old)/P(New)

:.2(l+b)/4(l+b)

:.double i.e. 2 times.