chord

Also known as chord of a curve, chord of a circle

geometric line segment whose endpoints both lie on the curve

AI overview

A chord is a straight line segment that connects two points on a curve, such as a circle. Chords are useful in geometry and mathematics because they help us understand the properties and relationships within curved shapes.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Subclass of: line segment
Image: Chord in mathematics.svg

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maintained by WikiProject: WikiProject Mathematics
Commons category: Chord (geometry)

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Encyclopedic overview

Common lines and line segments on a circle, including a chord in blue

A chord (from the Latin chorda, meaning "catgut or string") of a circle is a straight line segment whose endpoints both lie on a circular arc. If a chord were to be extended infinitely on both directions into a line, the object is a secant line. The perpendicular line passing through the chord's midpoint is called sagitta (Latin for "arrow").

Excerpted from Wikipedia’s “chord” article, available under the CC BY-SA 4.0 licence.

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