\input{preamble-standalone.ltx} \begin{document} % Ex. No. 100 (Section 17.0.3 : Option : "ex" ou "Excentral") \begin{tikzpicture}[scale=.6] \tkzDefPoints{0/0/A,6/0/B,0.8/4/C} \tkzDefSpcTriangle[excentral,name=J](A,B,C){a,b,c} \tkzDefSpcTriangle[extouch,name=T](A,B,C){a,b,c} \tkzDrawPolygon[blue](A,B,C) \tkzDrawPolygon[red](Ja,Jb,Jc) \tkzDrawPoints(A,B,C) \tkzDrawPoints[red](Ja,Jb,Jc) \tkzLabelPoints(A,B,C) \tkzLabelPoints[red](Jb,Jc) \tkzLabelPoints[red,above](Ja) \tkzClipBB \tkzShowBB \tkzDrawCircles[gray](Ja,Ta Jb,Tb Jc,Tc) \end{tikzpicture} \end{document}