IX Circles In figure, OD is perpendicular to the chord AB of a circle whose centre is O. If BC is

In figure, OD is perpendicular to the chord AB of a circle whose centre is O. If BC is a diameter, show that CA = 2 OD.
Class 9th Maths
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Class 9th Maths Circles
Angle subtended by a chord at a point
Perpendicular from the centre to a chord, Equal chords
And their distances from the centre, Angle subtended by the Arc,
Cyclic Quadrilaterals
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