chord AB and CD when produced meet at point P.
If ∠AOC=θ,∠BOD=α
then prove that ∠APC= (θ−α)/2
( O is the centre of the circle )
If ∠AOC=θ,∠BOD=α
then prove that ∠APC= (θ−α)/2
( O is the centre of the circle )
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