如图,在
中,点E是
的中点,交
的延长线于点F.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2400ff370addf1f4590cf2101f0aef57.png)
更新时间:2024-05-22 22:56:43
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解答题-证明题
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名校
【推荐1】如图,在
中,已知
,
,点P、D分别在
上,且
.
(1)求证:
是等腰三角形;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fca3734de79f7f50b552ef62b29dc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b6dc88e428fa5eb13f7614d8d6a9fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066da8286fb56d09b6295ae4b2f1b352.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/7635eb1d-95b7-47fa-bb6a-f88bb1e8b13f.png?resizew=122)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3877c5dd48bc7311f79a38de74a6cab4.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/295fe9ae1fd5e8856f377f991a019631.png)
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解答题-证明题
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【推荐2】如图,
,
,垂足分别为D、E,
、
相交于点F,
.
;
(2)在不添加辅助线的条件下,直接写出图中所有的全等三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421291381be28da4bd16560fd383b4a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/024dc2ccbbe321774df5d44e8785b203.png)
(2)在不添加辅助线的条件下,直接写出图中所有的全等三角形.
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解答题-证明题
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【推荐1】如图,四边形ABCD是平行四边形,点E是边BC延长线上一点,连接DE,若∠B=∠E,求证:DC=DE.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/5187cfb1-9d36-4f9f-8fcf-bd6ece679f98.png?resizew=153)
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【推荐2】如图,在平行四边形
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