# Add horizontal space in a figure with three subfigures

I have a figure with three subfigures arranged in two lines. The first one contains the first two subfigures. The other one contains the third. I would like to increase the horizontal spacing between the last one and the other two. The code is:



\documentclass[12pt]{article}
\usepackage{multicol}
\usepackage{geometry}
\geometry{
bottom=2cm,
left=2cm,
right=2cm,
top=2cm
}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{graphicx}
\begin{document}
\begin{figure}[!t]\centering
\setlength\belowcaptionskip{-1.5ex}
\begin{subfigure}[t]{0.4\textwidth}
\includegraphics[width=\textwidth]{example-image-a}
\caption{}
\end{subfigure}\hfill
\begin{subfigure}[t]{0.4\textwidth}
\includegraphics[width=\textwidth]{example-image-b}
\caption{}
\end{subfigure}
\begin{subfigure}[t]{0.4\textwidth}
\includegraphics[width=\textwidth]{example-image-c}
\caption{}
\end{subfigure}
\caption{ }
\end{figure}
\end{document}

• Wlcome to TeX.SE! Please extend your code fragment to complete, compilable small document with your figure beginning with \documentclass and ended by \end{document}. Jun 22 '20 at 11:22
• Last subfigure is horizontally centered. Where you like to add horizontal space? Or you mean vertical space between rows between images? Jun 22 '20 at 11:29
• I would like the two rows to be more separated so the purpose is to add more horizontal space between them, i.e., place image C lower Jun 22 '20 at 11:37
• Like as shown in my answer below? Jun 22 '20 at 11:38
• Thank you, it was solved by the [belowskip=2ex] command. Jun 22 '20 at 11:59

I guessing, that you looking for something like this:

\documentclass{scrartcl}
\usepackage[demo]{graphicx}
\usepackage[skip=1ex]{caption}
\usepackage[belowskip=2ex]{subcaption}

\usepackage{lipsum}

\begin{document}
\lipsum[11]
\begin{figure}[ht]\centering
%        \setlength\belowcaptionskip{-1.5ex}
\begin{subfigure}[t]{0.48\textwidth}
\includegraphics[width=\textwidth]{Riemananalitic0.png}
\caption{}
\label{fig:nperiodic1}
\end{subfigure}\hfill
\begin{subfigure}[t]{0.48\textwidth}
\includegraphics[width=\textwidth]{Riemananalitic10.png}
\caption{}
\label{fig:nperiodic2}
\end{subfigure}

\begin{subfigure}[t]{0.48\textwidth}
\includegraphics[width=\textwidth]{Riemananalytic100.png}
\caption{}
\label{fig:npdiflog}
\end{subfigure}
\caption{MY figure with three subfigures}
\label{fig:subfigures}
\end{figure}

\lipsum[12]
\end{document}