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怎样把线段五等分

更新时间: 2020-07-06 00:00:00     

1、作一射线OX,和线段OF,让其成一定的夹角;

2、在OX上连续截5段长度相等且首尾相连的线段OA等于AB等于BC等于CD等于DE;

3、连接EF;

4、过A、B、C、D作EF的平行线,则OF被5等分。

原理:平行线等分线段定理。如果一组平行线在一条直线上截得的线段相等,那么在其他直线上截得的线段也相等。

关键词: 怎样 线段 等分

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