\input{preamble-standalone.ltx} \begin{document} % Ex. No. 151 (Section 19.2.1 : Circles defined by a triangle.) \begin{tikzpicture} \tkzDefPoint(0,0){A} \tkzDefPoint(2,0){B} \tkzDefPoint(3,2){C} \tkzDrawPolygon(A,B,C) \tkzDrawCircles(A,B B,C C,A) \tkzDrawPoints(A,B,C) \tkzLabelPoints(A,B,C) \end{tikzpicture} \end{document}