天气预报 > 教育 > 什么是轴对称
什么是轴对称
更新时间: 2021-02-07 16:29:16  

1、如果一个平面图形沿着一条直线折叠后,直线两旁的部分能够互相重合,那么这个图形叫做轴对称图形(a figure has reflectional symmetry),这条直线叫做对称轴(axis of symmetry)。

2、斜放的图形只要能沿一条直线折叠,直线两侧的图形能够互相重合,就是轴对称图形。在轴对称图形中间画一条线,那条线叫对称轴。

关键词: 什么 轴对称

什么是轴对称相关经验

天气预报

最新推荐

页面:/news/view-2699165/ | 耗时:0.9954 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=2699165 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2699165 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2699165 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1101645,833196,417222,100505,843797,1577885,1200306,882716,406439,1095414,2873410,1077462,938150,1109090,1138584,1111356,1210066,700290,1304635,770255,86160,1498286,1297353,1859395,790648,1119540,439726,719587,1761928,1094961) ORDER BY field (ArticleID,1101645,833196,417222,100505,843797,1577885,1200306,882716,406439,1095414,2873410,1077462,938150,1109090,1138584,1111356,1210066,700290,1304635,770255,86160,1498286,1297353,1859395,790648,1119540,439726,719587,1761928,1094961)