How to Calculate the Radius of a Circle: Simple Methods Explained

Learn to calculate the radius of a circle using diameter and area with easy-to-follow methods.

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To calculate the radius of a circle, you can use the formula: radius = diameter / 2. If you know the area, use: radius = √(area / π). Both methods require basic mathematical operations: division and square root extraction.

FAQs & Answers

  1. What is the formula to find the radius from the diameter? The formula to find the radius from the diameter is radius = diameter / 2.
  2. How do you calculate the radius if you know the area? To calculate the radius from the area, use the formula: radius = √(area / π).
  3. Why is the radius important in geometry? The radius is crucial in geometry as it helps determine other properties of a circle, such as circumference and area.

Watch More

For more insights on geometry concepts, check out our videos on calculating the area of a circle and understanding circle properties. Enhance your math skills today!

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