\PGset[0.7em]
\begin{picture}   (10, 10)

\drawline     (2.5,1)(1,6)(5,9)(9,6)(7.5,1)(2.5,1) % P

\put( 4.2  , 4.2){$\scriptstyle P$}
\put( 2.2  , 0.2){$\scriptstyle A$}
\put( 6.7  , 0.2){$\scriptstyle B$}

\end{picture}
\quad
\PGset[0.8em]
\begin{picture}   (10, 9)
% 260x230
% 8x8

\drawline     (2.5,1)(1,4.5)(2.5,8)(7.5,8)(9,4.5)(7.5,1)(2.5,1)

\put ( 4.7  , 4.2){$\scriptstyle Q$}

\end{picture}
\quad
\begin{picture}   (10, 10)

\dashline[80]{0.4}(2.5,1)(1,6)(5,9)(9,6)(7.5,1)(2.5,1) % P

\put( 4.2  , 4.2){$\scriptstyle P'$}
\put( 2.2  , 0.2){$\scriptstyle A'$}
\put( 6.7  , 0.2){$\scriptstyle B'$}

\end{picture}

\PGrestore