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Triangulating a hexagon. (Posted on 2010-11-24) Difficulty: 4 of 5
Drawing 9 diagonals within a regular hexagon ensures that all its vertices are connected.

How many triangles there are in the newly created drawing?

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: by my count -- proposed solution -- missed a set | Comment 2 of 7 |
(In reply to by my count -- proposed solution by Charlie)

Well, I guess I did miss a set: ABH/L. Corrected table:

ABC     6
ABD/E  12
ACE     2
AGB     6
ABM/N  12
ASB     6
ASC     6
AMG/L  12
ASN/R  12
APC/E  12
AHD     6
ABH/L 12
      ---
      104  total

  Posted by Charlie on 2010-11-24 13:27:42
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