\input{preamble-standalone.ltx} \begin{document} % Ex. No. 118 (Section 16.0.3 : Option \tkzname{ex} or \tkzname{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](J_a,J_b,J_c) \tkzDrawPoints(A,B,C) \tkzDrawPoints[red](J_a,J_b,J_c) \tkzLabelPoints(A,B,C) \tkzLabelPoints[red](J_b,J_c) \tkzLabelPoints[red,above](J_a) \tkzClipBB \tkzShowBB \tkzDrawCircles[gray](J_a,T_a J_b,T_b J_c,T_c) \end{tikzpicture} \end{document}