The number Triangles in this picture

Question

I want a method for find the number triangles in the under image.

enter image description here

http://math.stackexchange.com/questions/203873/how-many-triangles
This has already been answered. — nabla, Oct 14 '14 at 19:01

score 0 · Answer 1 · answered Oct 14 '14 at 19:01

0

Start from the top. Take every juncture point and calculate the number of triangles starting, and going downward (i.e. the triangle is wholly under that point), from that point. Then add up.

answered Oct 14 '14 at 19:01

ploosu2

12,367

The number Triangles in this picture

1 Answers1