\begin{exercice}
Lire les coordonnées des vecteurs suivants dans le repère $(O;I,J)$ ci-dessous.

 \begin{colenumerate}{3}
  \item $\vv{AB}$
  \item $\vv{AD}$
  \item $\vv{CA}$
  \item $\vv{DE}$
  \item $\vv{AE}$
  \item $\vv{CF}$
 \end{colenumerate}
 \begin{center}
\begin{tikzpicture}[general, scale=0.7]
\clip (1,0)rectangle(11,5.22);
\foreach \x in {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
{\foreach \y in {0, 1.74, 3.48}
{\draw[quadrillage] (0+\x,0+\y)--(1+\x,0+\y)--(0.5+\x,0.87+\y)--cycle;
\draw[quadrillage] (0.5+\x,0.87+\y)--(1.5+\x,0.87+\y)--(1+\x,1.74+\y)--cycle;
}}
\draw[quadrillage] (0,5.22)--(11,5.22);
\draw[axe] (0,1.74) -- (11,1.74);
 \draw[axe] (3,0) -- (6,5.22);
 \draw[color=black] (3.9,1.74) node[below left] {{ $O$}};
 \draw[color=black] (5,1.74) node {{\boldmath $+$}};
 \draw[color=black] (5,1.74) node[below] {{$I$}};
 \draw[color=black] (4.5,2.61) node {{\boldmath $-$}};
 \draw[color=black] (4.5,2.61) node[left] {{$J$}};
 \foreach \N/\x/\y in {A/6.5/2.61,B/9.5/4.35, C/2/3.48, D/6.5/.87, E/9.5/0.87, F/1.5/2.61}
 {\pointGraphique{\x}{\y}{\N}{above}}
\end{tikzpicture}
 \end{center}
\end{exercice}
