Question

B Attempt the following:
1) The perimeter of rectangle is 27 cm and its length is 8 cm. Find its breadth.​

Answer 1

The breadth is 5.5 c

Step-by-step explanation:

As , we know that perimeter of the rectangle = 2×(l + b )

So , here length ( l ) is given that is 8 cm .

=> 2(l+b) = perimeter

=> 2( 8 + b ) = 27

=> 16 + 2b = 27

=> 2b = 27 - 16

=> 2b = 11

=> b = 11 /2 = 5.5 cm

Answer 2

☆ Solution ☆

Given :-

• The perimeter of rectangle is 27 cm

• The length of rectangle is 8 cm

To Find :-

• The breadth of rectangle

Step-by-Step-Explaination :-

Let,

• The breadth of rectangle be b

As we know that :-

Perimeter of rectangle = 2 ( length + breadth )

Where,

• The perimeter of rectangle = 27 cm

• The length of rectangle = 8 cm

• The breadth of rectangle = b

Putting the respective value,

27 = 2 ( 8 + b )

27 = 16 + 2b

27 - 16 = 2b

11 = 2b

b = 11/2

b = 5.5

Hence,

The breadth of rectangle = 5.5 cm