从三角形(不是等腰三角形)一个顶点引一条射线与对边相交,顶点与交点之同的线段把这个三角形分割成两个小三角形,如果分得的两个小三角形中一个为等腰三角形,另一个与原三角形相似,我们把这条线段叫做这个三角形的完美分割线.
(1)如图1,
中,
是
的完美分割线,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
______ ;
(2)如图2,
中,
是
的完美分割线,且
是以CD为底边的等腰三角形,则完美分割线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/12/f9e004e2-c0d0-4939-a509-22d5f65a5510.png?resizew=238)
(1)如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5469d50178319762915f9261d61d69e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc1a61192e44364f9a89d9fcb09b9a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
更新时间:2023-11-12 12:35:39
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【推荐1】如图所示,等腰
中,
,将
沿
对折,顶点
落在
边点
处,若
,
,那么
的长度是_____________
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【推荐2】在平面直角坐标系中,等腰三角形AOB 的顶点A的坐标为(2,2),底为OA,且B在坐标轴上,则B的坐标为___ .
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【推荐1】如图,在
中,点A在第一象限,点B在第二象限,且
,若点A在反比例函数
上,则经过点B的反比例函数为________
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【推荐2】如图,正方形
的边
在
的边
上,顶点
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分别在
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上,
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的边长等于________ .
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