Chord of a circle

A chord of a circle is a straight line segment whose endpoints both lie on the circle. 

Generally, a chord is a line segment joining two points on any curve, for instance an ellipse.

Chord

Chord AB of a circle with centre O.


Formula to find the length of the chord

Chord

AB  is chord, ∠ACB = ∠C, AC=CB=r

 

Length of the chord = 2r x sin c/where r = radius of the circle.

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