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[几何] 三视图问题 

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realnumber posted 2014-5-19 15:06 |Read mode
Last edited by realnumber 2014-5-19 15:12原题太难,简化下,原题来自这里sq.k12.com.cn/discuz/thread-705296-1-1.html
1.一几何体的三个三视图都是田字格(边长为1的四个小正方形),那么由小正方体(边长为1)构成的简单几何体,可以有几个?
(可以旋转重合的认为同一种)
2.三个三视图都是九宫格.那么小正方体最少几个?(模仿医生体检CT的一个办法,给出三层的剖面图.)

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kuing posted 2014-5-19 15:08

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original poster realnumber posted 2014-5-19 15:15
回复 2# kuing
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