How to Calculate the Radius from Circumference: A Step-by-Step Guide

Learn how to find the radius of a circle using the circumference with our simple formula and example.

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To find the radius if you only have the circumference, use the formula:radius = circumference / (2 * π). For example, if the circumference is 31.4, the radius would be 31.4 / (2 * 3.14) = 5. This allows you to easily determine the radius of a circle, provided you know the circumference.

FAQs & Answers

  1. What is the formula to find the radius from circumference? The formula to find the radius from the circumference is: radius = circumference / (2 * π).
  2. How do I find the circumference if I have the radius? To find the circumference from the radius, use the formula: circumference = 2 * π * radius.
  3. Can I calculate the radius without knowing π? No, π (pi) is essential for accurately calculating the radius or circumference of a circle.
  4. What does the radius of a circle represent? The radius of a circle is the distance from the center to any point on the circle's edge.

Watch More

For more insights into circle geometry, check out our content on area calculation and other geometric principles.

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