Two straight lines AB and CD intersect one another at the point O. If ∠AOC+∠COB+∠BOD = 274°, then ∠AOD =

Given,

∠AOC + ∠COB + ∠BOD = 274^o (i)

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

∠AOD + 274^o = 360^o

∠AOD = 86^o