How to Calculate the Radius of a Circle: Step-by-Step Guide

Learn the quick methods to calculate the radius of a circle using circumference and area. Get precise calculations in no time!

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To calculate the radius of a circle, use the formula radius = circumference / (2 * π) or radius = √(area / π). Measure the circumference or area of the circle first, then apply the appropriate formula.

FAQs & Answers

  1. What is the formula for finding the radius using circumference? The formula is radius = circumference / (2 * π).
  2. How do you calculate the radius from the area of a circle? Use the formula radius = √(area / π) to find the radius from the area.
  3. Why is π important in radius calculations? π (pi) is a constant that relates the circumference of a circle to its diameter, playing a crucial role in circular calculations.

Watch More

For more insights into geometry, check out our videos on calculating circumference and area of different shapes and understanding advanced math concepts.

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