天气预报 > 其他 > 如何用尺规作角平分线
如何用尺规作角平分线
更新时间: 2020-09-24 00:00:00  

在纸上画一个角,作为要被平分的角;以任意长度为半径,顶点为圆心画圆弧,交角两边于A、B;以A为圆心,大于AB/2长度为半径画圆弧;以B为圆心,同步骤3长度为半径画圆弧;两圆弧交于C点,连接顶点O和C,OC即为角平分线。

关键词: 何用 平分

如何用尺规作角平分线相关经验

天气预报

最新推荐

页面:/news/view-1568993/ | 耗时:0.0900 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=1568993 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1568993 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1568993 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1462014,180369,1731289,1345237,281294,3000135,634499,588126,277042,1285580,1495652,355633,192159,1484334,1493313,874304,220148,1596648,228837,1294454,176907,1428278,1564382,1473480,1077000,1563033,1582390,2908920,286874,127979) ORDER BY field (ArticleID,1462014,180369,1731289,1345237,281294,3000135,634499,588126,277042,1285580,1495652,355633,192159,1484334,1493313,874304,220148,1596648,228837,1294454,176907,1428278,1564382,1473480,1077000,1563033,1582390,2908920,286874,127979)