39. The perimeter of a rectangle becomes __________ times its original perimeter, if its length and breadth are doubled. 39. The perimeter of a rectangle becomes __________ times its original perimeter if its length and breadth are doubled. August 10, 2021 Category: Chapter 11 - Mensuration , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related