Question

the perimeter of a rectangle is 72cm.find the new perimeter if the length is doubled and breadth is tripled​

Answer 1

Step-by-step explanation:

let the length and breadth be 2x and 3x

perimeter of rectangle = 2 ( 2x + 3x )

10x = 72

x = 72/10

x = 7.2

length = 7.2 x 2 = 14.4 cm

breadth = 7.2 x 3 = 21.6 cm