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16. Consider any eight points such that no three are collinear. How many triangles are determined?
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16. Consider any eight points such that no three are collinear.

How many triangles are determined?

User Kalpesh Dabhi
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1 Answer

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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
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