鹿鸣社区里有一个五边形的小公园,如图所示,王老师每天晚饭后都要到公园里去散步,已知图中的∠1=
,王老师沿公园边由A点经B→C→D→E,一直到F时,他在行程中共转过了_____ 度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67574d7f0bcea29fdbf6efbc68f282ba.png)
![](https://img.xkw.com/dksih/QBM/2020/12/17/2616249611157504/2617721363054592/STEM/c3fcd40c-0f62-4a20-bd4c-9487f385ac72.png)
20-21八年级上·贵州黔东南·阶段练习 查看更多[2]
贵州省施秉县第三中学2020-2021学年八年级上学期第二次月考数学试题(已下线)专题11.15 多边形内角和与外角和(巩固篇)(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(人教版)
更新时间:2020-12-19 20:30:39
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【知识点】 多边形外角和的实际应用解读
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【推荐1】如图,在
中,
,点
是
边上一点,连接
,且
,
,
平分
,分别交
,
于点E,F,则
的度数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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【推荐2】如图,小明从点A出发,沿直线前进20m后向左转300,再沿直线前进20m,又向左转300……照这样走下去,小明第一次回到出发点A,一共走了________ 米.
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666254413824/1573666260443136/STEM/3f58a2a2b3514a178017013a4bb91068.png?resizew=143)
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