Hindi, asked by aworldofartofmusic, 6 months ago

If the perimeter of the rectangle is 400 cm and its length is 50 cm.Find its breadth.Also find its area.

Answers

Answered by anjanabansal911
1

Answer:

let

breadth = x

perimeter = 2( l+b)

400 = 2 ( 50 + x )

400 = 100 + 2x

2x = 400 - 100

2x = 300

x = 300/2

x = 150

Answered by simran7539
1

Solution

Given :-

  • The perimeter of the rectangle is 400 cm.

  • The length of the rectangle is 50 cm.

To Find :-

  • The breadth of the rectangle.

  • The area of the rectangle.

Step-by-step-Explaination :-

Let,

  • The breadth of the rectangle be b .

Now,

As we know that :-

Perimeter of the rectangle = 2 ( Length + Breadth )

Where,

  • The perimeter of the rectangle = 400 cm

  • The length of the rectangle = 50 cm.

  • The breadth of the rectangle = b

Putting the respective value,

400 = 2 ( 50 + b )

400 = 100 + 2b

400 - 100 = 2b

300 = 2b

300/2 = b

150 = b

Hence,

The breadth of the rectangle is 150 cm.

Now,

As we know that :-

Area of the rectangle = Length × Breadth

Where,

  • Length of the rectangle = 50 cm.

  • Breadth of the rectangle = 150 cm.

Putting the respective value,

Area of the rectangle = 50 × 150

Area of the rectangle = 7500

Hence,

The area of the rectangle is 7500 cm².

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