\ANG{
% 9/Geometrie/Strahlensatz 
%%\item
\parbox[t]{3cm}{
Beweise den\\
\GF{\bf T-Satz}:
\[\frac{\overline{AB}}{\overline{CD}}=\frac{\overline{SP}}{\overline{SQ}}\]
}\hfill
(a)
\raisebox{-28mm}{\parbox[t]{4.2cm}{
\begin {scriptsize}
\unitlength=1mm
\beginpicture 
\setcoordinatesystem units <1mm,1mm> 
\setplotarea x from -35 to 5, y from 0 to 30 
\inboundscheckon 
\setlinear 
\plot 4 11  -30 2.5 /  
\plot 4 8  -30 25 /  
\plot -25 0  -30 30 /  
\plot -12.5 5  -15 20 /  
\plot 4 9  -30 17.5 /  
\put {$A$} at -27 1.5 
\put {$B$} at -31 23 
\put {$Q$} at -15.2 11.5 
\put {$P$} at -29.5 15 
\put {$C$} at -14.5 4.5 
\put {$D$} at -13 19 
\put {$S$} at 0 8 
\endpicture 
\end {scriptsize} }}
(b)
\raisebox{-14mm}{\parbox[t]{4.2cm}{
\begin {scriptsize}
\unitlength=1mm
\beginpicture 
\setcoordinatesystem units <1mm,1mm> 
\setplotarea x from -20 to 30, y from -15 to 15 
\inboundscheckon 
\setlinear 
\plot -20 5  30 -7.5 /  
\plot -20 -10  30 15 /  
\plot -17.5 -10  -15 5 /  
\plot 20 -15  25 15 /  
\plot -20 -4  25 5 /  
\put {$Q$} at -18 -1.5 
\put {$B$} at 26.5 11 
\put {$C$} at -16.3 6.5 
\put {$P$} at 25 2.5 
\put {$D$} at -18 -12 
\put {$A$} at 23 -8.0 
\put {$S$} at 0 -2 
\endpicture 
\end {scriptsize} }}

}
\LSG{ - - - }
}
