What is the formula to calculate the circumference of a circle given the radius?
The formula to calculate the circumference of a circle given the radius is C = 2πr, where C represents the circumference, π (pi) approximates to 3.14159, and r represents the radius.
To find the circumference using this formula, you need to:
1. Identify the radius of the circle, which is the distance from the center to any point on the circle.
2. Plug the value of the radius into the formula C = 2πr.
3. Multiply 2 by π (approximately 3.14159).
4. Multiply the result of step 3 by the value of the radius.
5. The final result will be the circumference of the circle.