Q.2501 : दिए गये चित्र में AB ∥ CD यदि ∠OAB = 110° तथा ∠AOC = 30° हो तो ∠OCD = ?

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Q.2501 : दिए गये चित्र में AB ∥ CD यदि ∠OAB = 110° तथा ∠AOC = 30° हो तो ∠OCD = ?
(a) 140°
(b) 80°
(c) 220°
(d) 110°

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Answer :140°