How to Calculate the Radius from Circumference: A Simple Guide

Learn to find the radius using the circumference with our easy formula. Master the basics of circle geometry today!

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To find the radius when you have the circumference, use the formula: Radius = Circumference / (2 * π). For example, if the circumference is 31.4 units, the radius is approximately 5 units (31.4 / (2 * 3.14)).

FAQs & Answers

  1. What is the formula to find the radius from circumference? The formula is Radius = Circumference / (2 * π).
  2. How do you calculate the circumference from the radius? Circumference can be calculated using the formula Circumference = 2 * π * Radius.
  3. Why is π used in circle calculations? π (pi) is the ratio of the circumference of a circle to its diameter, approximately equal to 3.14.
  4. What units are used for calculating circumference and radius? Any unit of measurement can be used, such as meters, centimeters, or inches, as long as it is consistent.

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