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

% Ex. No. 90 (Section 13.1.2 : Example with \tkzcname{tkzDrawLines})

\begin{tikzpicture}
  \tkzDefPoint(0,0){A}
  \tkzDefPoint(2,0){B}
  \tkzDefPoint(1,2){C}
  \tkzDefPoint(3,2){D}
  \tkzDrawLines(A,B C,D A,C B,D)
  \tkzLabelPoints(A,B,C,D)
\end{tikzpicture}

\end{document}