如图,在
中,点D、点E分别是
的中点,点F是
上一点,且
,若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6446c8a33f62ca7c5f8cd2e6f271722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10787ce380382dfd1cf02255a623d80b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5163ee3c4dd3bb7402848587151d08c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a679040c4d556723e482bacbab41356d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/20/04a0494c-4583-4b40-b4f3-83bd5c5b9557.png?resizew=150)
A.10 | B.8 | C.6 | D.4 |
更新时间:2023-10-20 23:03:53
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【推荐1】如图,在等边△ABC中,D、E分别是边AB、BC的中点,DE=2,则△ABC的周长为( )
![](https://img.xkw.com/dksih/QBM/2021/6/16/2744002499764224/2799576613363712/STEM/06e2e621-1db1-4e2c-8c70-b4f9d98b1d9e.png)
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【推荐2】如图,在梯形ABCD中,AB∥CD,中位线EF与对角线AC、BD交于M、N两点,若EF=18cm,MN=8cm,则AB的长等于( )cm
![](https://img.xkw.com/dksih/QBM/2018/7/3/1980638741299200/1981889091387393/STEM/6f773ce0e9e24fe4a6412c948c5424a1.png?resizew=141)
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【推荐1】如图,在
中,
,D,E,F分别为
,
,
的中点,若
,则
的长度是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2fa001e22068705be6828b45f740fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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A. ![]() | B.1 | C. ![]() | D.![]() |
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【推荐2】如图,公路
,
互相垂直,公路
的中点
与点
被湖隔开,若测得
的长为
,则
,
两点间的距离为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/643a9ecf-b92e-4503-bffe-1c78cdaec1cd.png?resizew=189)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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