如图,在第1个
中,
,
;在边
上任取一点D,延长
到
,使
,得到第2个
;在边
上任取一点E,延长
到A,使
.得到第3个
按此做法继续下去,则第
个三角形中以
为顶点的内角度数是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e827641feb4179bca7033ed8760bf728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640e9e7c56e8eeda044fb55396088816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b162a86038237777ffd5052f5d9a90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabe764f05300ac83c7d16b685d27af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31600b262ae1241cd73738c34bbb9789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee3e259eccb7e77b3f4f2fe60fda24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32f1d6db99180ae7ee8af66f423dded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33369e998e9365bb5a28840c3eae6f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/863b937063fac3fab3037ff0a6c64961.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039af66355ed85ff4c204931b882b694.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/02734c8b-6acf-4be4-b99e-db8e4be9fddd.png?resizew=315)
更新时间:2023-09-20 11:25:03
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