如图,在正方形 ABCD 中,E是BC的中点,F是CD上一点,AE⊥EF.有下列结论:
①∠BAE=30°;
②射线FE是∠AFC的角平分线;
③CF=
CD;
④AF=AB+CF.
其中正确结论的个数为( )
![](https://img.xkw.com/dksih/QBM/2020/2/27/2408156957892608/2408943815819264/STEM/581410586e9443e1b52debb2edc55a37.png?resizew=161)
①∠BAE=30°;
②射线FE是∠AFC的角平分线;
③CF=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
④AF=AB+CF.
其中正确结论的个数为( )
![](https://img.xkw.com/dksih/QBM/2020/2/27/2408156957892608/2408943815819264/STEM/581410586e9443e1b52debb2edc55a37.png?resizew=161)
A.1 个 | B.2 个 | C.3 个 | D.4 个 |
19-20九年级上·江苏南京·期末 查看更多[6]
江苏省南京市建邺区2019-2020学年九年级上学期期末数学试题2020年山东省济南市历城双语学校九年级一模数学试题湖南省株洲市渌口区2019-2020学年八年级下学期期中数学试题(已下线)专题28.4+锐角三角函数(培优篇)(专项练习)-2021-2022学年九年级数学下册基础知识专项讲练(人教版)上海市民办新北郊初级中学2020-2021学年九年级上学期期末数学试卷上海市民办新北郊初级中学2021-2022学年九年级上学期期末数学试卷
更新时间:2020-02-28 21:11:39
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【推荐1】如图,在矩形ABCD中,AB=4,对角线AC,BD交于点O,sin∠COD=
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