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Un article trouvé pour ce sujet.
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Dividing a polygon into triangles |
2011-04-16 |
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Foxie pose la question :
You have a given regular polygon with n vertices and you divide it into triangles(using the vertices of the polygon) which each share at least one side with the polygon. How many distinct ways can you divide the polygon if its vertices are numbered? For n=3 it's 1 way, for n=4 it's 2 ways for n=5 5 ways, I'm not quite sure but think that for n=6 it's 12 ways... thanks in advance!
Claude Tardif lui répond. |
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