# Two straight lines AB and CD intersect one another at the point O. If ∠AOC+∠COB+∠BOD = 274°, then ∠AOD =A. 86°B. 90°C. 94°D. 137°

Given,

AOC + COB + BOD = 274o (i)

AOD + AOC + COB + BOD = 360o (Angles at a point)

AOD + 274o = 360o

AOD = 86o

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