How to Convert Diameter to Radius: Simple Formula Explained

Learn the quick formula to convert diameter to radius and its practical applications in mathematics.

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To convert diameter to radius, simply use the formula: radius = diameter / 2. The radius is half the length of the diameter, making it easy to find by dividing the diameter by 2. This conversion is crucial for various practical applications like calculating the area or circumference of a circle.

FAQs & Answers

  1. What is the relationship between diameter and radius? The radius is half the length of the diameter. To find the radius, simply divide the diameter by 2.
  2. Why is it important to convert diameter to radius? Converting diameter to radius is essential for calculating the area and circumference of circles, as these formulas typically require the radius.
  3. How do you calculate the circumference of a circle using radius? The circumference of a circle can be calculated using the formula: circumference = 2 * π * radius.
  4. What is the area of a circle in relation to the radius? The area of a circle is calculated using the formula: area = π * radius², which requires knowing the radius.

Watch More

For those looking to deepen their understanding of geometry, we recommend checking out related videos on calculating the area and circumference of a circle, as well as other fundamental geometry principles. These resources will provide greater insight into practical applications of these mathematical concepts.

  1. Understanding the Relationship Between Diameter and Radius Learn why the diameter is not half of the radius, and discover the correct formula to calculate them.