I would like to include three figures in a beamer slide. I should have one figure on the top and two at the bottom. I tried to do that with minipage but it does not show the desired result. I guess I am messing up with the dimension of the figures. My MWE is:
\documentclass[xcolor=pdftex,t,11pt]{beamer}
\begin{document}
\begin{frame}
\frametitle{Example}
\framesubtitle{Example1}
\begin {figure}
\vspace{-2.5ex}
\begin{minipage}{0.5\textwidth}
\begin{center}
\includegraphics[width=3.5 cm,height=2.5 cm]{example-image-a}
\caption{First}
\end{center}
\end{minipage}
\pause[2]
\begin{minipage}{0.5\textwidth}
\begin{minipage}{0.5\textheight}
\includegraphics[width=3.5 cm,height=2.5 cm]{example-image-b}
\caption{Second}
\end{minipage}
\pause[3]
\begin{minipage}{0.5\textheight}
\includegraphics[width=3.5 cm,height=2.5 cm]{example-image-c}
\caption{Third}
\end{minipage}
\end{minipage}
\end{figure}
\end{frame}
\end{document}
Do you have any hint to share? Thanks in advance

