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

Learn how to prove the diameter of a circle with clear formulas and practical tips for measurement.

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To prove the diameter of a circle, start by understanding that it is the longest distance across the circle, passing through its center. Use the formula D = 2r, where D is the diameter and r is the radius. If you know the circumference C, you can find the diameter using D = C/π. For practical measurement, use a ruler or caliper to measure across the circle's widest part, ensuring the tool passes through the central point.

FAQs & Answers

  1. What is the formula for the diameter of a circle? The formula for the diameter (D) is D = 2r, where r is the radius.
  2. How do you measure the diameter of a circle? To measure the diameter, use a ruler or caliper to measure the longest distance across the circle, ensuring it passes through the center.
  3. What is the relationship between circumference and diameter? The diameter can be found using the formula D = C/π, where C is the circumference.
  4. What tools can help measure the diameter accurately? Using a ruler or caliper provides accurate measurements of the circle's diameter.

Watch More

For further learning, check out our videos on circle properties and geometry proofs to enhance your understanding of fundamental concepts.

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