A line segment touching 2 points on the circumference of a circle.The diameter is the longest chord.

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**Achordof a****circle****is a****geometric****line segment****whose endpoints both lie on the circle. Asecantor a****secant line****is the line extension of a chord. More generally, a chord is a line segment joining two points on any curve, such as but not limited to an****ellipse****. A chord that passes through the circle's center point is the circle's diameter.**

** Among properties of chords of a****circle****are the following:**

**Chords are equidistant from the center only if their lengths are equal.****A chord that passes through the center of a circle is called a diameter, and is the longest chord.****If the line extensions (secant lines) of chords AB and CD intersect at a point P, then their lengths satisfy APPB = CPPD (****power of a point theorem****).**

**The area that a circular chord "cuts off" is called a****circular segment****.**

**Chord is from the Latin Chorda meaning Bowstring.**

**The red segmentBXis achord(as is the diameter lineAB).**

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A chord is a line segment whose endpoints lie on the circle. A diameter is the longest chord in a circle. A tangent to a circle is a straight line that touches the circle at a single point, while a secant is an extended chord: a straight line cutting the circle at two points.

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A straight line connecting two points on a curve.Example: a straight line connecting two points on a circle's circumference would be a chord.When the chord passes through the center of a circle it is called the diameter.

in this image ab is the chord

hapy diwali!!!!!!!!!!!!!!!!!!!!!

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