Update ANS: Two chords AB and CD intersect at P inside the circle.Prove that the sum of the all angles subtended by the arcs AC and BD at the centre O is equal to twice the angle APC.

20 Oct 2020

Two chords AB and CD intersect at P inside the circle.Prove that the sum of the all angles subtended by the arcs AC and BD at the centre O is equal to twice the angle APC.

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