\documentclass{article}
\usepackage{tikz}
\usepackage{graphicx}
\usepackage{caption}
\captionsetup{format=hang}
\usepackage[total={13cm,22cm},centering,includehead=true]{geometry}
\usepackage{subfigure}
\usepackage{xepersian} 


\begin{document}

\begin{figure}[!ht]
\centering
\subfigure[رأسهای روبرو در یک متوازی الاضلاع مجموع یکسانی دارند:  $.A+D=C+B$]
{
\begin{tikzpicture}
\begin{scope}[>=latex]
\draw [thick] (0,0)node[below left]{$A$} -- (3,0.5)node[right,below]{$B$};
\draw [thick] (0,0) -- (1,1.5)node[left,above]{$C$};
\draw [thick] (3,0.5) -- (4,2)node[left,above]{$D$};
\draw [thick] (1,1.5) -- (4,2);
\draw [fill] (0,0) circle [radius=0.03];
\draw [fill] (3,0.5) circle [radius=0.03];
\draw [fill] (1,1.5) circle [radius=0.03];
\draw [fill] (4,2) circle [radius=0.03];
\end{scope}
\end{tikzpicture} 
\label{fig1.3}
}
\hspace*{10mm}
\subfigure[نمایش هندسی جمع برداری با استفاده از قانون متوازی الاضلاع.]{
\begin{tikzpicture}
\begin{scope}[>=latex]
\draw (-0.2,0) node[below,node distance=-0.5cm]{\scalebox{0.8}{$O$}};
\draw (-0.5,0) -- (4,0);
\draw (0,-0.5) -- (0,3);
\draw[->][thick] (0,0) -- (3,0.5)node[right,below]{\scalebox{0.8}{$B$}};
\draw[->][thick] (0,0) -- (1,1.5)node[left,above]{\scalebox{0.8}{$C$}};
\draw[->][thick] (0,0) -- (4,2)node[right]{\scalebox{0.8}{$D=B+C$}};
\draw[densely dashed] (3,0.5) -- (4,2);
\draw[densely dashed] (1,1.5) -- (4,2);
\draw [fill] (0,0) circle [radius=0.03];
\draw [fill] (3,0.5) circle [radius=0.03];
\draw [fill] (1,1.5) circle [radius=0.03];
\draw [fill] (4,2) circle [radius=0.03];
\end{scope}
\end{tikzpicture} 
\label{fig1.4}
}
\end{figure}






\end{document}