\ANG{
%
%%\item
%
Berechne den Fl"acheninhalt der folgenden Figur (Abbildung nicht ma"sst"ablich):

$$
\beginpicture
\setcoordinatesystem units <1mm,1mm>
\setplotarea x from 0 to 90, y from 0 to 50
\plotsymbolspacing 0.25 pt
\setdashes
\plot 45  0   45  40 /
\setsolid
\plot 0   0    0  40   70 40   70  25  45  0   0  0  /
\circulararc  90 degrees from   8  0  center at  0  0
\circulararc  90 degrees from   0 32  center at  0 40
\circulararc  90 degrees from  38 40  center at 45 40
\circulararc  90 degrees from  62 40  center at 70 40
\circulararc -45 degrees from  45 10  center at 45  0
\multiput {\circle*{2.5}}[Bl] at   3  3   3  37   42  37  67 37  /


\put {$163 {\rm cm}$} at   7 20
\put {$201 {\rm cm}$} at  20 43
\put {$46  {\rm cm}$} at  55 43
\put {$45^0$}         at  48  6


\endpicture
$$


}
\LSG{        
$3,9203{\rm\,m}^2$

% Zum Vergleich: $24{\rm\,cm}^2$

}


