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

Learn how to easily find the diameter of a circle using radius and circumference formulas.

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To find the diameter of a circle, you can use the formula: `Diameter = 2 * Radius`. Measure the radius (distance from the center to any point on the edge) and multiply it by 2. Alternatively, if you know the circle's circumference (the distance around the circle), you can find the diameter using `Circumference / π` (Pi).

FAQs & Answers

  1. What is the diameter of a circle? The diameter of a circle is the length of a straight line passing from one side of the circle to the other through its center.
  2. How is the diameter related to the radius? The diameter is twice the radius. It can be calculated using the formula: Diameter = 2 * Radius.
  3. Can you find the diameter if you know the circumference? Yes, you can find the diameter by using the formula: Diameter = Circumference / π (Pi).
  4. Why is the diameter important in geometry? The diameter is crucial for calculating the area and circumference of a circle, assisting in various practical applications in mathematics and engineering.

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