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[几何] 请教一个几何题

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中学生 posted 2013-6-19 22:27 |Read mode
已知△ABC内有一点P,问:如何做一条过P点的直线,使得此直线将△ABC分成的两部分的面积的差最大

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kuing posted 2013-6-19 22:40
感觉上这线大概必定是“中点弦”……

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isee posted 2013-6-20 12:16
(其中一种情形可)转化为求得这两部分中的三角形面积最小。

bbs.pep.com.cn/forum.php?mod=viewthread&tid=411109

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isee posted 2013-6-20 12:16
感觉上这线大概必定是“中点弦”……
kuing 发表于 2013-6-19 22:40

借用圆锥曲线 中点弦 之意?

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