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[几何] 四边形最值

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几何小迷 Post time 2014-11-14 20:15 |Read mode

已知一个以原点为圆心，4为半径的圆内有一点A（1，2),过A点作两条互相垂直的弦MN和PQ，分别交圆于M、N、P、Q四个点，求凸四边形MPNQ的面积的最大值和最小值

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Author| 几何小迷 Post time 2014-11-14 21:54

请问，有没有比较好的几何方法，避免繁琐的利用解析几何计算

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Author| 几何小迷 Post time 2014-11-14 22:13

会了。谢谢大家

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其妙 Post time 2014-11-14 23:44

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kuing Post time 2014-11-15 16:12

FAQ
bbs.pep.com.cn/thread-874878-1-1.html

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