How to Easily Calculate Radius from Circumference

Learn how to quickly determine the radius when you have the circumference using a simple formula.

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To find the radius when given the circumference, divide the circumference by 2π (approximately 6.28). The formula is: `radius = circumference / (2 π)`. For example, if the circumference is 31.4 units, the radius is: `31.4 / (2 3.14) = 5 units`.

FAQs & Answers

  1. What is the formula to find the radius from circumference? The formula is radius = circumference / (2π), where π is approximately 3.14.
  2. How do I calculate the circumference of a circle? Circumference can be calculated using the formula: circumference = 2πr, where r is the radius.
  3. Can the radius be found with different measurements? Yes, the radius can be determined using the circumference or area of the circle.
  4. What if I only have the diameter? If you have the diameter, simply divide it by 2 to find the radius.

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