Question

The perimeter of a rectangle is 30 cm and length is 12 cm then its breadth is​

Answer 1

Answer:

3

Step-by-step explanation:

perimeter of rectangle = 2(length + breadth)

given 2(12+b)=30

• 12+b=30/2=15

• b=15-12=3

Answer 2

Answer :-

Breadth of Rectangle = 3 cm.

Explanation :-

Given :

• Perimeter of Rectangle = 30 cm.
• Length of Rectangle = 12 cm.

To Find :

• Breadth of Rectangle.

Solution :

We know that,

Perimeter of Rectangle = 2(l + b).

➙ 2(12 + b) = 30.

➙ 24 + 2b = 30.

➙ 2b = 30 - 24.

➙ 2b = 6.

➙ b = 6 ÷ 2.

➙ b = 3.

Therefore, Breadth of Rectangle = 3 cm.

Extra Shots :-

• Area of Rectangle = l × b.
• Perimeter of Rectangle = 2(l + b).
• Diagonal of Rectangle = √(l² + b²).
• Perimeter of Square = 4 × side.
• Area of Square = side × side.