\input{preamble-standalone.ltx} \begin{document} % Ex. No. 73 (Section 8.10.2 : Example with \tkzcname{tkzAutoLabelPoints}) \begin{tikzpicture}[scale=1.25] \tkzDefPoint(2,1){O} \tkzDefRandPointOn[circle=center O radius 1.5cm] \tkzGetPoint{A} \tkzDrawCircle(O,A) \tkzDefPointBy[rotation=center O angle 100](A) \tkzGetPoint{C} \tkzDefPointBy[rotation=center O angle 78](A) \tkzGetPoint{B} \tkzDrawPoints(O,A,B,C) \tkzDrawSegments(C,B B,A A,O O,C) \tkzAutoLabelPoints[center=O,red](A,B,C) \end{tikzpicture} \end{document}