Question

the are of a rectangle is 200 m sq if its length is 20m,find the breadth and perimeter​

Answer 1

Given: The area of a rectangle is $200m.sq.$and its length is $20m.$

We have to find the breadth and perimeter​ of the rectangle.

For which we are using the formula of the area of the rectangle=$l*b$

and the perimeter​ of rectangle = $2(l+b)$

Now,

Area of rectangle$=l*b$

$=>200=20*b\\=>\frac{200}{20} =b\\=>b=10$

The breadth of a rectangle is $10m.$

The perimeter​ of a rectangle is

$=>2(l+b)\\=>2(20+10)\\=>2(30)\\=>60$

The perimeter of  a rectangle is $60m.$

Hence,

The breadth of a rectangle is $10m.$

The perimeter of  a rectangle is $60m.$

Answer 2

From the given question the correct answer is:

The breadth of the rectangle is 10m

the perimeter of rectangle is 400m

Given:

Area= 200$m^{2}$

lenght =20m

To find:

breadth and parameter

Concept used:

From the Formula of area of rectangle we will find the Breadth

the we will find the parameter.

Area of rectangle=l×b

Perimeter of rectangle=2(l×b)

Solution=

Area of rectangle=length×breadth

200$m^{2}$=20m×breadth

200$m^{2}$/20m =breadth

breadth = 10m

Now , we will find perimeter of rectangle

Perimeter of rectangle=2(l×b)

                                      =2(20×10)

                                       =2×200

                                       =400m

Hence, The breadth of the rectangle is 10m

the perimeter of rectangle is 400m