如图,在
中,
是
边上的高,
,
分别是
和
的角平分线,它们相交于点O,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/225e83dc-358d-4c29-8aac-62ba9776e512.png?resizew=231)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3520e77c084d9cc81d8c0edaed0a62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
20-21七年级下·河北邢台·期末 查看更多[10]
河北省邢台市信都区2020-2021学年下学期七年级期末考试数学试题河北省邯郸市广平县2020-2021学年七年级下学期期末数学试题河北省邯郸市邱县2020-2021学年七年级下学期期末数学试题内蒙古自治区呼和浩特市实验教育集团察哈尔校区2021-2022学年八年级上学期期中数学试题重庆市垫江第八中学2021-2022学年八年级上学期第一次定时练习数学试题(已下线)专题11.2 与三角形有关的角(能力提升)-2022-2023学年八年级数学上册《同步考点解读·专题训练》(人教版)重庆市垫江县垫江第八中学校2021-2022学年八年级上学期第一次月考数学试题(已下线)八年级上学期期中【易错60题考点专练】-2022-2023学年八年级数学上学期考试满分全攻略(人教版)(已下线)(培优特训)专项7.6 三角形有关的线段和角高分必刷-2022-2023学年七年级数学下册《同步考点解读·专题训练》(苏科版)(已下线)专题04 三角形(考题猜想,易错必刷27题8种题型专项训练)-2023-2024学年七年级数学下学期期中考点大串讲(北师大版)
更新时间:2021-07-07 08:32:59
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【推荐1】如图,AD为∠CAF的角平分线,BD=CD,∠DBC=∠DCB,∠DCA=∠ABD,过D作DE⊥AC于E,DF⊥AB交BA的延长线于F,则下列结论:①△CDE≌△BDF;②CE=AB+AE;③∠BDC=∠BAC;④∠DAF=∠CBD.其中正确的结论有( )
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【推荐2】如图,已知
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【推荐1】如图,△ABC的角平分线CD、BE相交于F,∠A=90°,EG∥BC,且CG⊥EG于G,下列结论:①S△BDC=S△BCG;②∠CEG=2∠DCB;③CA平分∠BCG;④∠ADC=∠GCD;⑤∠CGE=2∠DFB,其中正确的结论有( )个.
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【推荐2】如图,
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