Q. 34.9( 7 Votes )

In Fig. 16.122, <

Answer :

We have,

AOB = 80o


AOC = 110o


AOB + AOC + BOC = 360o (Complete angle)


80o + 110o + BOC = 360o


BOC = 170o


By degree measure theorem,


BOC = 2 BAC


170o = 2 BAC


BAC = 85o


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