1.

In the given figure, if EC || AB, ∠ECD = 70° and ∠BDO = 20°, then ∠OBD is(a) 20°(b) 50°(c) 60°(d) 70°

Answer» In the given figure, if EC || AB, ∠ECD = 70° and ∠BDO = 20°, then ∠OBD is



(a) 20°



(b) 50°



(c) 60°



(d) 70°





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