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如何画一条直线的平行线

更新时间: 2020-07-01 00:00:00     

方法1:

1、在这条直线上任意取2个点;

2、分别以这2点为垂足作直线的垂线;

3、分别在这两条垂线上取相同的线段,另外2个点须在同一侧,再连接这2个点并延长。

方法2:

1、已知一直线AB;

2、以A点为圆心,以一定的距离为半径画圆弧;

3、再B点以为圆心,以相同的距离为半径画圆弧;

4、作两圆弧的切线;

5、切线即是所需的平行线。

关键词: 如何 直线 平行线

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