\input{preamble-standalone.ltx} \begin{document} % Ex. No. 101 (Section 17.0.4 : Option : "intouch") \begin{tikzpicture}[scale=.75] \tkzDefPoints{0/0/A,6/0/B,0.8/4/C} \tkzDefSpcTriangle[intouch,name=x](A,B,C){a,b,c} \tkzInCenter(A,B,C)\tkzGetPoint{I} \tkzDrawPolygon[red](A,B,C) \tkzDrawPolygon[blue](xa,xb,xc) \tkzDrawPoints[red](A,B,C) \tkzDrawPoints[blue](xa,xb,xc) \tkzDrawCircle[in](A,B,C) \tkzAutoLabelPoints[center=I,blue,font=\scriptsize]% (xa,xb,xc) \tkzAutoLabelPoints[center=I,red,font=\scriptsize]% (A,B,C) \end{tikzpicture} \end{document}