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What is the formula of perimeter …

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What is the formula of perimeter of circle

Posted by Naman Dubey 5 years ago

CBSE > Class 09 > Mathematics

4 answers

Sanjay Kumar 5 years ago

2πr

0Thank You

Yashika Goyal 5 years ago

Perimeter of circle=2πr

1Thank You

Gaurav Seth 5 years ago

A circle’s perimeter is called the circumference. The symbol of the circumference is C.

The Circumference (or) perimeter of a circle = 2πR

where,

R is the radius of the circle

π is the mathematical constant with an approximate (up to two decimal points) value of 3.14

Again,

Pi (π) is a special mathematical constant; it is the ratio of circumference to diameter of any circle.

where C = π D

C is the circumference of the circle

D is the diameter of the circle

For example: If the radius of the circle is 4cm then find its circumference.

Given: Radius = 4cm

Circumference = 2πr

= 2 x 3.14 x 4

= 25.12 cm

1Thank You

Priyanshu Jat 5 years ago

C=2πr

2Thank You

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