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如何画一个圆内接正方形
更新时间: 2020-10-13 00:00:00  

1、利用几何画板圆工具绘制一个圆,圆心为O,利用点工具在圆上任取一点A。

2、选圆心O和点A,选择“构造”直线,选中圆心O和直线OA,选择“构造”垂线。此时两条直线与圆的交点分别为A、B、C、D。

3、依次选中点A、B、C、D,选择“构造”线段,再选中两条直线,按下“Ctrl+H”将直线隐藏,圆的内接正方形就绘制完成了。

关键词: 如何 一个 正方形

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