Höhen im Dreieck

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% Title:			 Höhen im Dreieck
% Author:      Tobias Krähling
% Needs:       pstricks, pst-node
% DesignScale: unit=10mm
% Size:			   8.4 x 6.0
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
{\sbPSTDefault\sffamily
\begin{pspicture}(0.8,0.5)(9.2,6.5)
	\pnode(1,1){A}
	\pnode(9,1){B}
	\pnode(4,6){C}
	%Höhenlinien
	\pnode(4,1){hc}
	\pnode(5,5){ha}
	\pnode(3.13,4.55){hb}
	\pcline[linecolor=sblinedark](A)(ha)\aput[1pt]{:U}{\textcolor{sblinedark}{$h_a$}}
	\pcline[linecolor=sblinedark](B)(hb)\aput[1pt]{:D}{\textcolor{sblinedark}{$h_b$}}
	\pcline[linecolor=sblinedark](C)(hc)\Aput[1pt]{\textcolor{sblinedark}{$h_c$}}
	\psarc[linecolor=sblinedark](ha){0.5}{225}{315}
	\psarc[linecolor=sblinedark](hb){0.5}{238}{328}
	\psarc[linecolor=sblinedark](hc){0.5}{0}{90}
	\uput{7pt}[270](ha){\textcolor{sblinedark}{$\cdot$}}
	\uput{7pt}[280](hb){\textcolor{sblinedark}{$\cdot$}}
	\uput{7pt}[40](hc){\textcolor{sblinedark}{$\cdot$}}
	%Dreieck
	\pcline[linewidth=1pt](A)(B)\bput{:U}{c}
	\pcline[linewidth=1pt](A)(C)\aput{:U}{b}
	\pcline[linewidth=1pt](C)(B)\aput{:U}{a}
	\uput[-90](A){A}
	\uput[-90](B){B}
	\uput[90](C){C}
	\psarc(1,1){1}{0}{60}
	\psarc(9,1){1}{135}{180}
	\psarc(4,6){1}{240}{315}
	\uput{15pt}[30](A){$\alpha$}
	\uput{15pt}[162](B){$\beta$}
	\uput{15pt}[278](C){$\gamma$}
\end{pspicture}
}