Question

1. Find the circumference of a circle whose radius is 7 cm.
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Answer 1

Ans :-

2. pi. 7

14pi cl

pi = 22/7

Answer 2

Answer :-

• The circumference of a circle whose radius is 7cm is 44cm.

Step-by-step explanation:

To Find :-

• The circumference of circle

Solution:

Given that,

• The radius of circle = 7cm

As we know that,

Circumference of circle = 2πr,

Where,

• π = 22/7
• r = Radius

=> 2πr

=> 2 × 22/7 × 7

=> 2 × 22

=> 44cm

Hence, The circumference of circle is 44cm.

Formula used :

• Circumference of circle = 2πr

Know more :

Some more information related to perimeter :-

• Perimeter of rectangle = 2(length+breadth)
• Perimeter of square = 4 × side
• Perimeter of circle = 2πr
• Perimeter of rhombus = 4 × side.