# What is the circumference of a circle with a diameter of 30 centimeters?

The circumference of a circle is the total length of the circle. It is similar to the perimeter of a quadilateral.

## Answer: The circumference of a circle with a diameter of 30 centimeters would be 94.25 centimeters

The diameter of circle is given by joining any two points on the circle such that the line passes through the center. In other words, the diameter of a circle is twice its radius i.e., **2r**.

## Explanation:

The formula for calculating the circumference of a circle = **2πr**

π is the numerical constant with an approximate value of 3.14156

2πr = (2r) × π = 3.14156 × 30

Hence the circumference of the circle = 94.2486 = 94.25 (after rounding off to two decimal places)