OB平分∠AOC
∠BOC=1/2∠AOC
OD平分∠COE
∠COD=1/2∠COE
∠BOC+∠COD=1/2∠AOC+1/2∠COE=1/2∠AOE=90°
∠COD:∠BOC=2:3
∠COD=90*2/(2+3)=36°
∠BOC=90*3/(2+3)=54°
OB平分∠AOC
∠BOC=1/2∠AOC
OD平分∠COE
∠COD=1/2∠COE
∠BOC+∠COD=1/2∠AOC+1/2∠COE=1/2∠AOE=90°
∠COD:∠BOC=2:3
∠COD=90*2/(2+3)=36°
∠BOC=90*3/(2+3)=54°