Question

如图:OB是∠AOC的平分线,OD是∠COE的平分线,若∠AOB=45°,∠DOE=35°,∠BOD多少度?

Answer 1

既然是角平分线,∠AOB=∠BOC,∠COD=∠DOE.所以∠BOD=∠BOC+∠COD=∠AOB+∠DOE=45+35=80