Understanding the Difference Between Chord and Diameter in Circles

Learn the key differences between a chord and diameter of a circle, including definitions and properties.

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A chord is a line segment with both endpoints on the circle. The diameter is a special type of chord that passes through the center of the circle and is the longest chord. Therefore, while all diameters are chords, not all chords are diameters. The diameter is twice the radius, so Diameter = 2 × Radius.

FAQs & Answers

  1. What is the definition of a chord in a circle? A chord is a line segment with both endpoints on the circumference of a circle.
  2. Is a diameter always a chord? Yes, a diameter is a specific type of chord that passes through the center of the circle.
  3. How do you find the length of a diameter? The diameter is twice the length of the radius, so Diameter = 2 × Radius.
  4. What is the relationship between chords and diameters? All diameters are chords, but not all chords are diameters, as diameters are the longest chords in a circle.

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