如图,在△ABC中,∠C=45°,
=
,AD⊥BC于点D,AC=
,若E、F分别为AC、BC的中点,则EF的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738a9b90d2dd1211573506389361c67a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
A.![]() | B.2 | C.![]() | D.![]() |
21-22九年级上·安徽合肥·期末 查看更多[6]
安徽省合肥市蜀山区2021-2022学年九年级上学期期末数学试题2022年山东省淄博市博山区中考二模数学试题(已下线)第4章 锐角三角函数(A卷·知识通关练) -【单元测试】2022-2023学年九年级数学上册分层训练AB卷(湘教版)(已下线)第4章 锐角三角函数(A卷·知识通关练) -【单元测试】2022-2023学年九年级数学上册分层训练AB卷(湘教版)2024年陕西省西安高新区第三初级中学中考四模数学试题2024年陕西省西安市雁塔区西安高新第三中学中考四模数学试题
更新时间:2022-05-03 09:28:18
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