Question

3. If the length and breadth of a rectangle is doubled, how many times will the perimeter of the new
rectangle be that of the original rectangle?
Solution : Let the length and breadth of the rectangle be x cm and y cm respectively.​

Answer 1

Answer:

Double of the original.

Step-by-step explanation:

original length: x cm

original breadth: y cm

original perimeter: 2(x+y) cm

new length: 2x cm

new breadth: 2y cm

new perimeter: 2(2x+2y) cm

                        =4(x+y) cm

                        = 2x2(x+y) cm i.e double of original