\documentclass{standalone}
\usepackage{tikz}
\begin{document}
	\begin{tikzpicture}
	\draw (-1.1,1.9) node[left][scale=0.7]{$y_3'$}-- (-1.1,1.1) node[left, scale=0.7]{$y_2$}--(0,0)node[right][scale=0.7]{$x_1$}--(1.1,1.1) node[right, scale=0.7]{$x_3$} --(1.1,1.9) node[right][scale=0.7]{$x_2'$}--(0,3) node[right][scale=0.7]{$y_1'$}--(-1.1,1.9)--(1.1,1.9)--(0,0)--(-1.1,1.9);
	\draw [dashed] (-1.1,1.1) --(1.1,1.1) --(0,3)--cycle;
	
	\draw (-0.2,2.5)node[left][scale=0.7]{$y_2'$}--(0.2,2.5)node[right][scale=0.7]{$x_3'$}--(0,2.2)node[right][scale=0.7]{$x_1'$}--cycle;
	\draw[dashed] (-0.2,0.5)node[left, scale=0.7]{$y_3$}--(0.2,0.5)node[right, scale=0.7]{$x_2$}--(0,0.8)node[right][scale=0.7]{$y_1$}--cycle;
	\draw[dashed] (-0.2,2.5)--(-0.2,0.5)--(0,2.2)--(0.2,0.5)--(0.2,2.5)--(0,0.8)--(-0.2,2.5);
	\end{tikzpicture}
\end{document}