\ANG{
%
%%\item
%
\begin{minipage}[t]{8cm}
\begin{enumerate}
\item
Welchen Prozentsatz der Quadratfl"ache f"ullt die schraffierte Fl"ache?
\item
Die vier Viertelkreise begrenzen ein (krummliniges) Viereck.
Berechnen Sie den Radius des gr"o"sten Kreises, den man diesem einbeschreiben kann.
\end{enumerate}
\end{minipage}
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$$
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$$
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}
\LSG{   
\begin{enumerate}
\item
$2\cdot(1-{\pi \over 4})=0{,}429$
\item
${a \over 2} (\sqrt{2} - 1)$
\end{enumerate}     
}
