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r3的正多边形的内接圆和外切圆反了 |
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发表于 2011-9-12 16:14:00
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发表于 2011-9-12 16:31:00
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发表于 2011-9-13 10:30:00
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发表于 2011-9-13 16:13:00
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发表于 2011-9-14 12:34:00
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发表于 2011-9-14 13:03:00
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回复 8# koutianping 的帖子
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