jFx8JR
Written on June 24, 2019
% Dans le préambule
% -----------------
\usepackage{pstricks-add}
% -----------------
\begin{pspicture}(0,0)(6,2)
\pspolygon(1,0)(2,2)(3,2)(4,0)
\pcline(2,2)(3,2)
\naput{L1}
\pcline(1,0)(4,0)
\nbput{L2}
\pcline[offset=5mm,arrows=<->](1,0)(2,2)
\ncput*{$H_1$}
\pcline[offset=4mm,arrows=|-|](3,2)(4,0)
\naput*[nrot=:U]{$x$}
\end{pspicture}