Question

The length of a rectangle is three time its breadth.If the area of a rectangle is 1875 sq.cm,find its perimeter

Answer 1

Answer:

Step-by-step explanation:

Let, the breadth of rectangle be x.

The length is 3 times its breadth.

So, length 3x.

Area of rectangle = l*b

1875 = 3x*x

1875 = 3x²

1875/3 = x²

625 = x²

25 = x

Length =3x = 3*25 = 75cm

Breadth = x = 25cm

Perimeter of rectangle = 2(l+b)

=> 2(75+25)

=> 2(100)

=> 200cm