\begin{tableau}[pr]{\linewidth}
  \\ \hline %%%%%%%%%%%%%%%%%%%%%%P58
 \begin{tikzpicture}[general, scale=2]
   \draw[fill=C4](0,0)--(1,0)--(0.5,0.87)--cycle;
   \draw (0,0) node[left]{$A$};
   \draw (1,0) node[right]{$B$};
   \draw (0.5,0.87) node[above]{$C$};
   \draw (0.25,0.435) node[color=B1, rotate=150]{\large $\infty$};
   \draw (0.75,0.435) node[color=B1, rotate=30]{\large $\infty$};
   \draw (0.5,0) node[color=B1, rotate=90]{\large $\infty$};
  \end{tikzpicture} &
  \propriete{}
 Si un triangle est équilatéral alors ses angles mesurent 60\degre.
&
Ici, $ABC$ est équilatéral.

Donc $\widehat A = \widehat B = \widehat C = 60\degremm$.
\end{tableau}
