Colored Hexagon (Part 1)
Number of triangles that can be formed from
of
?
Try more here
The answer is 20.
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1 solution
A triangle has 3 vertices and hexagon has 6 vertices.
Required triangles can be formed by choosing any 3 vertices from the 6 available vertices. The possible no. of such combinations is 6 C 3 = 2 0
Hence, 20 such triangles can be formed.