Understanding Circle Measurements: Diameter vs Circumference

Learn why the diameter of a circle is not half the circumference and understand the key formula C = πD.

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No, the diameter of a circle is not half the circumference. The diameter is the distance across the circle through its center. The relationship between the circumference and the diameter is given by the formula C = πD, where C is the circumference and D is the diameter.

FAQs & Answers

  1. What is the formula for the circumference of a circle? The circumference of a circle can be calculated using the formula C = πD, where C is the circumference and D is the diameter.
  2. Can you explain the difference between radius and diameter? The diameter is the distance across the circle through its center, while the radius is half the diameter, measuring from the center to the edge.
  3. How is the value of π used in geometry? The value of π (pi) is used to relate the circumference of a circle to its diameter and plays a crucial role in various geometric calculations.

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For further exploration of geometric concepts, check out our videos on calculating areas, understanding angles, and other mathematical principles.

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