问题:
如图,⊙O是△ABC的外接圆,∠BOC=100°,则∠A的度数为( )
A.40°
B.50°
C.80°
D.100°
如图,⊙O是△ABC的外接圆,∠BOC=100°,则∠A的度数为( )
A.40° | B.50° | C.80° | D.100° |
参考答案: