How About a little fun? How Many Triangles Are there in this figure?

Mefisto

macrumors 65816
Mar 9, 2015
1,272
1,537
Finland
Yeah. I got 17, read the comments, started losing my mind and then finally figured out I didn't count the, you know, triangle. The big one. With the smaller ones inside of it.

These were never my strong suit.
 
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NoBoMac

Moderator
Staff member
Jul 1, 2014
2,838
1,161
18.

Saw an article the other day about this. Mathematicians all said 18 and provided formulas for it.
 
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