\begin{figure}[htbp]
\centering
\begin{minipage}[b]{6 cm}
\includegraphics[width=165pt]{2tangenten.PNG}
\end{minipage}
\begin{minipage}[b]{6 cm}
\includegraphics[width=165pt]{2tangenten.PNG}
\end{minipage}
\caption{2 Tangenten}
 }
\end{figure}