\PGset[0.8em]
\begin{picture}(16,14)

% 378x336
% 14x12

\drawline(1,8)(3,1)(11.5,1)(15,7)(6,13)(1,8) % ABCDEA

\dashline[80]{0.2}(3,1)(6,13)(11.5,1) % BEC

\put( 0.3,  7.7 ){$\scriptstyle A$}
\put( 2.7,  0.2 ){$\scriptstyle B$}
\put(11.2,  0.2 ){$\scriptstyle C$}
\put(15.0,  6.7 ){$\scriptstyle D$}
\put( 5.7, 13.2 ){$\scriptstyle E$}


\end{picture}
\PGrestore
\quad\quad
\PGset[0.5em]
\begin{picture}(16,14)

% 378x336
% 14x12

\drawline(1,8)(3,1)(11.5,1)(15,7)(6,13)(1,8) % ABCDEA

\dashline[80]{0.2}(3,1)(6,13)(11.5,1) % BEC

\put( 0.0,  7.5 ){$\scriptstyle A$}
\put( 2.7, -0.2 ){$\scriptstyle B$}
\put(10.6, -0.2 ){$\scriptstyle C$}
\put(15.0,  6.5 ){$\scriptstyle D$}
\put( 5.5, 13.2 ){$\scriptstyle E$}


\end{picture}
\PGrestore