单选题 适中0.65 引用9 组卷647
如图,点A,B,C在⊙O上,CO的延长线交AB于点D,∠A=50°,∠B=30°,则∠ADC的度数为( )
![](https://img.xkw.com/dksih/QBM/2018/11/13/2074733423132672/2075407010160640/STEM/fe0edc56a3294281a02a481c36855036.png?resizew=103)
![](https://img.xkw.com/dksih/QBM/2018/11/13/2074733423132672/2075407010160640/STEM/fe0edc56a3294281a02a481c36855036.png?resizew=103)
A.70° | B.90° | C.1![]() | D.120° |
16-17九年级上·北京东城·期末
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A.70° | B.90° | C.1![]() | D.120° |
组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网