Question

The area of a rectangular sheet is 120 sq. m. and its length is 20 m. Find its perimeter.

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Step-by-step explanation:

The area of given rectangle is =120 m^2

Area of rectangle is= length×breadth

Let's say length = l

Breadth =b

Now , perimeter of rectangle is =2(l+b)

Perimeter is=46m

Now, 2 ( l+b)=46

Square on both sides

4(l+b)^2=2116

(l+b)^2=529

Open the whole square

l^2+b^2+2 (l×b)=529

Put the value of l×b= 120

l^2+b^2=529–240

l^2+b^2=289

We know that diagonal is √l^2+b^2

So answer is √289

17 m

Thanks.