问题:
若O是△ABC的内心,且∠BOC=100°,则∠A=
A.20°
B.30°
C.50°
D.60°
若O是△ABC的内心,且∠BOC=100°,则∠A=
A.20°
B.30°
C.50°
D.60°
A.20°
B.30°
C.50°
D.60°
参考答案: