% !TeX TXS-program:compile = txs:///pdflatex

\documentclass[margin=5mm]{standalone}
\usepackage{tikz3d-fr}

\begin{document}

\begin{EnvTikzEspace}[UniteX={-5:0.9cm},UniteY={25:0.5cm},UniteZ={90:1cm}]
	\def\LCB{4.8}
	%placement des points avec labels
	\PlacePointsEspace{A/0,0,0/bg B/\LCB,0,0/b C/\LCB,\LCB,0/d D/0,\LCB,0/hg E/0,0,\LCB/g F/\LCB,0,\LCB/bd G/\LCB,\LCB,\LCB/d H/0,\LCB,\LCB/h}
	\PlacePointsEspace{K/1.37,0,0/b L/3.43,\LCB,\LCB/h}
	%section
	\fill[orange,opacity=0.25] (E)--(L)--(C)--(K)--cycle ;
	\TraceSegmentsEspace[very thick,dashed,orange]{K/C C/L}
	\TraceSegmentsEspace[very thick,orange]{K/E E/L}
	%segments pointillés
	\TraceSegmentsEspace[very thick,dashed]{A/D D/C D/H}
	%segments pleins
	\TraceSegmentsEspace[very thick]{A/B B/C C/G G/H H/E E/A E/F B/F F/G}
	%Marques points
	\MarquePointsEspace{A,B,C,D,E,F,G,H,K,L}
\end{EnvTikzEspace}

\end{document}