If the sides of a parallelogram are increased to twice its original lengths, how much will the perimeter of the new parallelogram?

Let the length and breadth of the parallelogram be l and b, respectively.

⇒ Then, perimeter = 2(l + b) [∵ perimeter of parallelogram = 2 × (length + breadth)]

⇒ If both sides are increased twice, then new length and breadth will be 2l and 2b, respectively.

⇒ Now, new perimeter = 2(2l + 2b)

⇒ 2 × 2(l + b)

⇒ 2 times of original perimeter.

Hence, the perimeter of parallelogram will be increased 2 times