The problem

来源: yma16 于 2003-07-03 12:57:00 [] [旧帖] [给我悄悄话] 阅读数 : 0 (204 bytes)
回答: Geometry 由 yma16 于 2003-07-02 22:12:00

If I give you a surface (not flat) and a triangle, can you find 3 points on the surface to form a triangle that is "similar" to the one I give you. The answer is yes. But you have to tell me the reason.



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