Question

3. The area of a rectangle is 180 m . If its length is 18 m, find its breadth and perimeter,​

Answer 1

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Given:-

Area = 180m

Length = 18m

∴ Breadth = Area/Breadth

=> 180/18

=> 10m

Now, Perimeter = 2(l+b)

=> 2(18+10)

=> 2×28

=> 56m

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Answer 2

☆ Solution ☆

Given :-

• The area of a rectangle is 180 m.

• The length of the rectangle is 18 m.

To Find :-

• The breadth of the rectangle.

• The perimeter of the rectangle.

Step-by-Step-Explaination :-

Let,

The breadth of the rectangle be b.

As we know that :-

Area of the rectangle = length × breadth

Where,

• The area of the rectangle = 180 m.

• The length of the rectangle = 18 m.

• The breadth of the rectangle = b.

Putting the respective value,

180 = 18 × b

180 = 18b

b = 180/18

b = 10

Hence,

The breadth of the rectangle is 10 m.

Now,

As we know that :-

Perimeter of the rectangle = 2 ( length + breadth )

Where,

• The length of the rectangle = 18 m

• The breadth of the rectangle = 10 m

Putting the respective value,

Perimeter of the rectangle = 2 ( 18 + 10 )

Perimeter of the rectangle = 2 × 28

Perimeter of the rectangle = 56

Hence,

The perimeter of the rectangle is 56 m.