Il est possible de modifier et de compiler cet exemple :
\documentclass[border=10pt]{standalone}
\usepackage{tkz-euclide}
\begin{document}
\tkzSetUpStyle[orange]{new}
\begin{tikzpicture}[rotate=90]
\tkzDefPoints{0/0/A,6/0/B,0.8/4/C}
\tkzDefSpcTriangle[medial,name=M](A,B,C){_A,_B,_C}
\tkzDefTriangleCenter[euler](A,B,C)\tkzGetPoint{N}
% I= N nine points
\tkzDefTriangleCenter[ortho](A,B,C)\tkzGetPoint{H}
\tkzDefMidPoint(A,H) \tkzGetPoint{E_A}
\tkzDefMidPoint(C,H) \tkzGetPoint{E_C}
\tkzDefMidPoint(B,H) \tkzGetPoint{E_B}
\tkzDefSpcTriangle[ortho,name=H](A,B,C){_A,_B,_C}
\tkzDrawPolygon(A,B,C)
\tkzDrawCircle[new](N,E_A)
\tkzDrawSegments[new](A,H_A B,H_B C,H_C)
\tkzDrawPoints(A,B,C,N,H)
\tkzDrawPoints[new](M_A,M_B,M_C)
\tkzDrawPoints( H_A,H_B,H_C)
\tkzDrawPoints[green](E_A,E_B,E_C)
\tkzAutoLabelPoints[center=N,
font=\scriptsize](A,B,C,M_A,M_B,M_C,H_A,H_B,H_C,E_A,E_B,E_C)
\tkzLabelPoints[font=\scriptsize](H,N)
\tkzMarkSegments[mark=s|,size=3pt,
color=blue,line width=1pt](B,E_B E_B,H)
\end{tikzpicture}
\end{document}