\input{preamble-standalone.ltx}
\begin{document}

% Ex. No. 179 (Section 24.3 : \tkzcname{tkzDrawArc} et \tkzname{rotate})

\begin{tikzpicture}
  \tkzDefPoint(0,0){O}
  \tkzDefPoint(2,-2){A}
  \tkzDefPoint(60:2){B}
  \tkzDrawLines[add = 0 and .5](O,A O,B)
  \tkzDrawArc[rotate,color=red](O,A)(180)
  \tkzDrawPoints(O,A,B)
  \tkzLabelPoints[below](O,A,B)
\end{tikzpicture}

\end{document}
