What is the Longest Chord in a Circle?

Discover why the diameter is the longest chord in a circle and understand its significance in geometry.

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The longest chord in a circle is the diameter. A chord is a straight line connecting two points on a circle, and the diameter is a chord that passes through the center, making it the longest possible chord in a circle.

FAQs & Answers

  1. What defines a chord in a circle? A chord is a straight line that connects two points on the circumference of a circle.
  2. Can a chord be longer than the diameter? No, the diameter is the longest chord possible in a circle.
  3. How is the diameter related to chords? The diameter is a special type of chord that passes through the center of the circle.
  4. What are the properties of the diameter? The diameter divides the circle into two equal halves and is twice the length of the radius.

Watch More

For more insights into geometric concepts, check out our videos on circle equations and properties, or dive deeper into chord and secant definitions.

  1. Understanding the Longest Chord of a Circle: What is the Diameter? Discover how the diameter of a circle serves as its longest chord, connecting key geometric concepts.
  2. Understanding the Diameter: The Largest Chord of a Circle Learn what the largest chord of a circle is and why the diameter is significant in geometry.