The mid-points of the sides AB, BC and CA of the equilateral DeltaABC – InterviewSolution

1.	The mid-points of the sides AB, BC and CA of the equilateral DeltaABC are D, E and F respectively, AE intersects DF at O. If angleOBD=15^@ , then angleAOB=
Answer» `45^@` `105^@` `120^@` `135^@` ANSWER :d

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