in given figure o is centre of the circle if angle aoc =130 then find angle abc
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arnuv44:
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Join A and C to any point P in major arc AC.
We know that the angle subtended by an arc of a circle at the centre is double the angle subtended by it any point on the remaining part of the circle.
Now, ABCP is a cyclic quadrilateral and sum of opposite angles in a cyclic quadrilateral is 180°
Therefore,
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