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  • $\begingroup$ Hi, I'm sorry, what is the question? If how to draw a triangle, then you need nothing more than EdgeForm@Thick, FaceForm@None, Polygon[{a, b, c}] in Epilog. $\endgroup$ Commented Mar 21, 2014 at 23:08
  • $\begingroup$ The question is about getting the cartesian coordinates of the points where a circle intersects a triangle - with less code as here where I had to plot three lines and solve three equations, where each line intersects the circle. $\endgroup$ Commented Mar 22, 2014 at 6:10
  • $\begingroup$ Ok, so the data is: 3 points for traingle, center and radius for circle, right? Also, is precission important? $\endgroup$ Commented Mar 22, 2014 at 8:52
  • $\begingroup$ Yes, I start with 3 points for the triangle , 1 point for the centre of the circle, length of its radius. I could not find a way to write a single Solve between the equation of the circle and an analytic expression representing the triangle. Precision of the intersection points coordinates is very important. $\endgroup$ Commented Mar 22, 2014 at 16:35