I think you mean to say that they form a triangle, and all triangles are convex.

That is to say that 3 points taken in isolation form a triangle. (all the caveats about non-colinearity apply) Three points on a general 2-D surface will be connected in an ordered fashion with a line (think connect the dots).

thor

In reply to Re: Re(4): Clockwise or Counter-clockwise by thor
in thread Clockwise or Counter-clockwise by stu96art

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