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判断五个点在同一个圆上
更新时间: 2020-09-12 00:00:00  

五个点在同一个圆上,即任三点所成之三角形会有相同的外接圆。

因此只要任三点所成之三角形之外心交于一点,即为此五点的外接圆。外心是三角形各边中垂线交点。因此,五点两两做连线,每条连线的中垂线如果交于一点,即有一共同的外接圆。

关键词: 判断 同一个

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