Question 131199: Consider eight points in a coordinate plane that no three are collinear. How many triangles can be drawn? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Consider eight points in a coordinate plane that no three are collinear. How many triangles can be drawn?
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Every set of three points determines a triangle.
# of sets of three is 8C3= (8*7*6) / (1*2*3) = 56
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Cheers,
Stan H.
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