how to calculate the circumference of a circle
How to calculate the circumference of a circle
Answer:
To calculate the circumference of a circle, you can use the formula:
C = 2 \pi r
where:
- C represents the circumference of the circle,
- \pi is a mathematical constant approximately equal to 3.14159,
- r is the radius of the circle.
To find the circumference, simply multiply 2 by \pi (pi) and then by the radius of the circle. This formula works for any circle, regardless of its size.
For example, if the radius of a circle is 5 units, the circumference would be:
C = 2 \times 3.14159 \times 5 = 31.4159 units.
So, the circumference of a circle can be easily calculated using this simple formula.