Question

The area of a rectangular region is 560cm square and one of its side is 20 cm find its perimeter

Answer 1

Answer:

let , ABCB is a rectangle

then, area of rectangle=l×b=560cm

one side of rectangle=20cm

l×b=560

let, be l=20cm

20×b=560

b=28square cm

perimeter of rectangle=2(l+b)

2(20+28)=2(48)=96 square cm

Answer 2

Its perimeter is 96 cm

Step-by-step explanation:

One of the side of rectangular region = 20 cm

Area of rectangular region = $Length \times Breadth$

                                            = $20 \times Breadth$

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

So, $20 \times Breadth = 560$

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

Breadth =28

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

Hence its perimeter is 96 cm

#Learn more:

Find the area of a rectangular region of dimensions 150 cm by 100 cm

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