1:1  01-11[数学]范老师教你用全等进行转化，巧求角的度数和
推荐理由：看似复杂的问题，只要掌握了方法就可以轻松解决。范老师教你观察题目中的图形，逐步分析、巧妙转化，轻松得分。 讲解人：http://www.jiandan100.cn/teacher/f6bde55ee0bc42adac11fef663fb1257/ ，北京五中数学教师，常年辅导竞赛班 题面：如图：3×3正方形，∠1+∠2+…+∠9=_____________.  【答案及详解】 本部分内容设定了隐藏,需要回复后才能看到
 跟帖分享你的答案，即可看到正确答案和解析！别忘了回帖后再点进来查看答案哦~
遇到问题不要盲目下手，要注意观察哦! ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 查看更多本年级每周一题，请点击：http://www.jiandan100.cn/bbs/upload/forumdisplay.php?fid=376& 浏览本期“简单学习电子周报”完整目录：http://www.jiandan100.cn/bbs/upload/viewthread.php?tid=658318 |
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