问题:
已知△ABC内接于⊙O,若∠AOB=120°,则∠C的度数是
[ ]
A.60°
B.120°
C.60°或120°
D.30°或150°
已知△ABC内接于⊙O,若∠AOB=120°,则∠C的度数是
B.120°
C.60°或120°
D.30°或150°
[ ]
A.60° B.120°
C.60°或120°
D.30°或150°
参考答案: