Question

In the figure, O is the centre and AD is the diameter of the circle. B and C are two points

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Answer 1

Answer:

Angle AOB = 180°-50°=130°

Angle OBA =25 ° = Angle OAB

Angle OAC=25°

Measureof of Angle BOC = Angle DOB+ Angle DOC

                                100°   = 50° +50°