\begin{minipage}{4cm}
\begin{tikzpicture}[scale=0.5]
\draw (0,0) node[above left] {A} -- (4,0) node[above right] {B} -- (4,-4) node[below right] {C} -- (0,-4) node[below left] {D} -- (0,0);
\draw (3,-0.1) -- (3,0.1) node[above] {J};
\draw (2,-3.9) -- (2,-4.1) node[below] {I};
\draw (0,-4) -- (3,0);
\draw (2,-4) -- (0,0);
\coordinate (I) at (2,-4);
\coordinate (J) at (3,0);
\coordinate (O) at (1.2,-2.4);
%\fill (O) circle (2pt);
\pic[draw, angle radius=5mm, pic text=$\theta$, pic text options={xshift=5mm, yshift=0mm}] {angle = I--O--J}; 
\end{tikzpicture}
\end{minipage}
\begin{minipage}{\dimexpr\linewidth-4cm}
ABCD est un carré. I est le milieu de [AB] et J est tel que $\vv{AJ}=\dfrac{3}{4}\vv{AB}$.

\medskip

Calculer l'angle $\big(\vv{AI},\vv{DJ}\big)$.

\vspace*{1.5cm}
\end{minipage}
\vspace*{-1.7em}

