The length of a rectangle is twice its breadth. The perimeter of the rectangle is 120 cm. Find the length and breadth

The length of a rectangle is twice its breadth. The perimeter of the rectangle is 120 cm. Find the length and breadth of this rectangle. Also find its area,

Sol:

Let the breadth of the rectangle is b cm

.So, the length of the rectangle is 2b cm

We know that the perimeter of rectangle is