∠AOB=120°AO⊥OC,OD平分∠BOC,∠DOE=2/3∠AOD,求∠COE的度数

问题描述:

∠AOB=120°AO⊥OC,OD平分∠BOC,∠DOE=2/3∠AOD,求∠COE的度数

doe=66°cod=15°
81°