Question

The length of a rectangle is twice its width. if the perimeter is 42 cm what are the dimentions

Answer 1

Answer:

length = 14cm , breadth = 7cm

Step-by-step explanation:

let width be x

so,the length is 2x

now perimeter of a rectangle is 42 cm

perimeter = 2(l+b)

42=2(2x+x)

42=4x+2x

42/6=x

x=7

2x=14