Question

The length of a rectangle is twice its breadth .if the perimeter of the rectangle is 180cm.Find its

dimensions.​

Answer 1

Answer:

let breadth of rectangle = x cm

so length = 2x cm

Perimeter of rectangle = 180

2(x + 2x) = 18p

6x = 180

x = 30

so, breadth = 30 cm and length = 60 cm

Answer 2

Let the breadth =x
It’s length. =2x
It’s perimeter. = 2(l+b)=2(2x+x) 2(3x)=6x
But given perimeter =180cm=6x
=x=180/6=30cm
So it’s breadth =30cm
It’s length. =60cm