Circumference of Circle Formula
The circumference of a circle is equal to the length of its boundary, but the circle is a curved shape, its circumference can’t be measured with a ruler. The correct way to find the perimeter of a circle is to calculate it using the formula C = 2π × r. If the diameter or radius of a circle is known circumference of the circle can be easily calculated.
Circumference to Diameter
The ratio of Circumference to the Diameter of a circle is always a constant and that is π. Using this fact we can calculate the formula for circumference.
Circumference/Diameter = π
Circumference = π×Diameter
Circumference to Radius
As the Diameter of a circle is two times the circle’s radius, the ratio of Circumference to the radius of a circle is also always a constant, which is 2π. Using this fact we can also calculate the formula for the circumference.
Circumference/Radius =2π
Circumference = 2π×Radius
Circumference of Circle – Definition, Perimeter Formula, and Examples
Circumference of a Circle is defined as the boundary or the outer path covered by any circle. It is also called its perimeter. Let’s learn about how to find a circle’s circumference using formulas with the help of examples.
Table of Content
- Circumference of Circle Definition
- Circumference of Circle Formula
- Circumference to Diameter
- Circumference to Radius
- How to Find Circumference of Circle?
- Difference between Circumference and Area