Question

If the area of a rectangular region is 560cm? and one of its side is 20 cm then
find its perimeter?
(96​

Answer 1

Correct question!!

If the area of a rectangular region is 560 cm² and one of its side is 20 cm then find its perimeter.

Solution!!

The area and one of the side of a rectangular region is given in the question. According to the question, we have to find the perimeter of that rectangular region. To do so, we have to find the other side of the rectangular region.

Area = 560 cm²

Breadth = 20 cm

Area = Length × Breadth

560 cm² = Length × 20 cm

Length = 560 cm² ÷ 20 cm

Length = 28 cm

Now that we know both the sides of the rectangular region, we can easily find out the perimeter.

Perimeter = 2(Length + Breadth)

Perimeter = 2(28 cm + 20 cm)

Perimeter = 2(48 cm)

Perimeter = 96 cm

Hence, the perimeter of that rectangular region is 96 cm.

Answer 2

Answer:

Its perimeter is 96 cm

Step-by-step explanation:

One of the side of rectangular region = 20 cm

Area of rectangular region = Length×BreadthLength \times BreadthLength×Breadth

= 20×Breadth20 \times Breadth20×Breadth

We are given that The area of a rectangular region is 560 cm square

So, 20×Breadth=56020 \times Breadth = 56020×Breadth=560

Breadth=56020Breadth = \frac{560}{20}Breadth=

20

560

Breadth =28

Perimeter of rectangular field = 2(l+b)=2(20+28)= 96 cm

Hence its perimeter is 96 cm