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

% Ex. No. 95 (Section 12.2 : \tkzcname{usetkzobj\{defcircles\}})

\begin{tikzpicture}[scale=0.75]
  \tkzDefPoint(0,0){A}
  \tkzDefPoint(4,0){B}
  \tkzDefPoint(3,3){C}
  \tkzDefCircle[in](A,B,C)
  \tkzGetPoint{I}\tkzGetLength{rI}
  \tkzDrawCircle[R](I,\rI)
  \tkzDrawPolygon(A,B,C)
  \tkzDrawPoints(A,B,C,I)
  \tkzLabelPoints(A,B,C,I)
\end{tikzpicture}

\end{document}
