Finding the Circumference of a Circle: Formula, Calculation Steps, and Example

Circumference of Circle

The circumference of a circle is the distance around its outer edge

The circumference of a circle is the distance around its outer edge. It can be calculated using the formula:

C = 2πr

where C represents the circumference, π (pi) is a mathematical constant approximately equal to 3.14159, and r is the radius of the circle.

To find the circumference, you need to know the value of the radius. The radius is the distance between the center of the circle and any point on its edge. It is usually denoted by the letter “r.”

To calculate the circumference of a circle, follow these steps:

1. Determine the radius of the circle.
2. Plug the value of the radius into the formula C = 2πr.
3. Multiply 2π by the radius to find the circumference.

For example, let’s say you have a circle with a radius of 5 units. To find the circumference, substitute the value of the radius into the formula:

C = 2πr
C = 2π(5)

Now, multiply 2π by 5:

C = 10π

Since π is approximately 3.14159, the circumference will be:

C ≈ 10 × 3.14159
C ≈ 31.4159 units

So, the circumference of a circle with a radius of 5 units is approximately 31.4159 units.

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