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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

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