如图,点G为△ABC的重心,连接AG、BG并延长,分别交BC、AC于点D、E,过点E作EF∥BC交AD于点F,那么AF:AG=__ .
![](https://img.xkw.com/dksih/QBM/2018/1/28/1870253074653184/1873432984961024/STEM/091a73efb13241e888e3b5ab3f32306c.png?resizew=162)
更新时间:2018-02-01 22:52:04
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【知识点】 相似三角形的判定与性质综合
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【推荐1】如图,AB,CD都与
轴垂直,垂足分别为B,D,点C在双曲线
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,
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的值是____ .
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【推荐2】如图①,线段
,点P为AB的中点,射线
于点A,
于点B,C、D分别是射线AM、BN上的动点,且满足
,则:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/051dba58-2c86-4b4f-bcf8-6df2846f1fcf.png?resizew=419)
(1)
的值为______ ;
(2)如图②,E是射线AM上另一动点,满足
,垂足为Q,
时,AC的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/051dba58-2c86-4b4f-bcf8-6df2846f1fcf.png?resizew=419)
(1)
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(2)如图②,E是射线AM上另一动点,满足
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/301d3adb50223140afcf7991609ea4bc.png)
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