Triangular Prism in LaTex

Question

How do you draw a triangular prism like this in LaTex? Thank you

I also please need help in labeling all the vertices, thank you

Answer 1

Welcome to TeX.SE!

\documentclass[tikz,border=3.14mm]{standalone}
\begin{document}
\begin{tikzpicture}
 \draw[dashed,thick] (-1,0) -- (0,0.5) edge (0,2.5) -- (1,0);
 \draw[thick] (-1,0) rectangle (1,2) -- (0,2.5) -- (-1,2);
\end{tikzpicture}
\end{document}

For more advanced applications I'd recommend tikz-3dplot or asymptote.

Some labels, as requested. Just to make sure: this is not a typesetting service. So please try doing something on your own!

\documentclass[tikz,border=3.14mm]{standalone}
\begin{document}
\begin{tikzpicture}
 \draw[dashed,thick] (-1,0) -- (0,0.5) edge (0,2.5) -- (1,0) coordinate(BR);
 \draw[thick] (-1,0) coordinate(BL)  rectangle (1,2) coordinate(TR) 
 -- (0,2.5) coordinate(T) -- (-1,2) coordinate(TL);
 \foreach \X [remember=\X as \Y (initially TL),count=\Z] in {BL,BR,TR,T,TL}
 {\path (\Y) -- (\X) node[midway,anchor={90*\Z-90-ifthenelse(\Z==4,45,0)-ifthenelse(\Z==5,45,0)}]{label \Z}; }
\end{tikzpicture}
\end{document}

Answer 2

A nice solution with PSTricks.

\documentclass[pstricks,12pt]{standalone}
\usepackage{pst-eucl}
\begin{document}
\begin{pspicture}(8,10)
    \pstGeonode[PosAngle={180,0,45}](1,1){A}(7,1){B}(4,4){C}(4,9){F}
    \pstTranslation[PosAngle={180,0}]{C}{F}{A,B}[D,E]
    \psline(E)(F)(D)(A)(B)(E)(D)
    \psset{linestyle=dashed}
    \psline(A)(C)(B)
    \psline(C)(F)
\end{pspicture}
\end{document}