MA0301/exam/graphics/16.tex

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\newcommand{\arrow}[2]{\path [-{Latex[scale=1]}] (#1) edge (#2);}
\begin{tikzpicture}
\begin{scope}[every node/.style={shape=circle, fill=white, draw, inner sep=2pt}]
\node (A) at (0,2.5) {$A$};
\node (B) at (-2.37764,0.77254) {$B$};
\node (C) at (-1.46946,-2.02254) {$C$};
\node (D) at (1.46946,-2.02254) {$D$};
\node (E) at (2.37764,0.77254) {$E$};
\end{scope}
\begin{scope}[every draw/.style={}]
\draw (A) -- (B);
\draw (A) -- (C);
\draw (A) -- (E);
\draw (B) -- (D);
\draw (B) -- (E);
\draw (D) -- (E);
\end{scope}
\end{tikzpicture}