\begin{exercice}
  Même consigne qu'à l'exercice \RefExercice{2G3_E_ex34}.
\begin{colenumerate}{3}
 \item $\vv{AB}-\vv{CD}$
 \item $\vv{BA}-\vv{EF}$
 \item $\vv{CD}-\vv{FE}$
\end{colenumerate}
\vspace{-1.5em}
\begin{enumerate}
\setcounter{enumi}{3}
\item Que dire du quadrilatère $CEFD$?
\end{enumerate}
\vspace{-1em}
\begin{center}
\begin{tikzpicture}[general, scale=0.8]
\quadrillageSeyes{(0,0)}{(8,3.2)}
\foreach \x/\y/\N/\pos in {7.2/0.8/A/below left,4/1.6/B/below left,0.8/0.8/C/below left,4.8/0.8/D/below right,6.4/2.4/E/above right,2.4/2.4/F/above left}
{\pointGraphique{\x}{\y}{\N}{\pos}}
\end{tikzpicture}
\end{center}
\end{exercice}
