Question

How many triangles can be formed from 12 non collinear points?

Answer 1

Because the arrangements didn't need an order, so we can use combination to solve this problem.

Since there are 12 points and we need only to take three of them, so the possibility is

C(12,3) = 220

If there is no criteria, I think this is the total number to create the triangle from the 12 distinct points.

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