174k views
24 votes
16. Consider any eight points such that no three are collinear.

How many triangles are determined?

1 Answer

10 votes
Let's assume that a,b&c are in one straight line, so cannot form a triangle with each other. Now, total possible Triangle that can be formed choosing any 3 points without any colinear constraint is 8C3 = 56
User Ferenc Deak
by
5.2k points