Understanding Circle Sizes: Diameter, Radius, and Circumference

Learn the different sizes of a circle, including diameter, radius, and circumference, explained in simple terms.

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Circle sizes can be described by their diameter, radius, and circumference. The diameter is the longest distance across the circle passing through the center. The radius is half the diameter, measured from the center to any point on the edge. The circumference is the distance around the circle's edge, calculated as `π (pi) times the diameter`.

FAQs & Answers

  1. What is the difference between diameter and radius? The diameter is the total distance across the circle through its center, while the radius is half of this distance, measured from the center to the edge.
  2. How do you calculate the circumference of a circle? The circumference is calculated using the formula C = π (pi) × diameter.
  3. What is the formula for finding the radius? To find the radius, divide the diameter by two: radius = diameter / 2.
  4. Can you explain what circumference means? Circumference refers to the distance around the edge of the circle.

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