In the given figure, O is the centre of a circle. If $∠ O A C = 50^{\circ} then ∠ O D B = ?$

(a) $40^{\circ}$

(b) $50^{\circ}$

(c) $60^{\circ}$

(d) $75^{\circ}$

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Solution

NSWER:
( b ) 50°
∠ODB =∠OAC = 50 ° (Angles in the same segment of a circle)

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