Answer:

LET the breadth of the rectangle is B cm.

Let the breadth of the rectangle is b cm.So, the length of the rectangle is 2B cm.

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

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=2(l+b)

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=2(l+b)SINCE, perimeter of rectangle is 120 cm.

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=2(l+b)Since, perimeter of rectangle is 120 cm. Therefore,

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=2(l+b)Since, perimeter of rectangle is 120 cm. Therefore,6b=120

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=2(l+b)Since, perimeter of rectangle is 120 cm. Therefore,6b=120b=20 cm

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=2(l+b)Since, perimeter of rectangle is 120 cm. Therefore,6b=120b=20 cmAnd l=40 cm

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=2(l+b)Since, perimeter of rectangle is 120 cm. Therefore,6b=120b=20 cmAnd l=40 cmSo, the area of rectangle is

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=2(l+b)Since, perimeter of rectangle is 120 cm. Therefore,6b=120b=20 cmAnd l=40 cmSo, the area of rectangle is=20×40=800 cm2

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=2(l+b)Since, perimeter of rectangle is 120 cm. Therefore,6b=120b=20 cmAnd l=40 cmSo, the area of rectangle is=20×40=800 cm2Hence, the length is 40 cm, breadth is 20 cm and area is 800 cm2.