%@Auteur: Arnaud Gazagnes\par \begin{center} \psset{unit=7cm,linewidth=1pt} \begin{pspicture}(-0.1,-0.05)(2.2,0.55) {\psset{PointName=none,PointSymbol=none}\pstTriangle(0,0){A}(1,0){B}(0.75,0.53){C} {\psset{unit=3cm}\pstMarkAngle{C}{B}{A}{} \pstMarkAngle{B}{A}{C}{} \pstMarkAngle{A}{C}{B}{} } \pstTriangle(2.1,0.12){D}(1,0){B}(0.75,0.53){C} {\psset{unit=2cm}\pstMarkAngle{D}{B}{C}{} \pstMarkAngle{B}{C}{D}{} }} {\psset{unit=6cm}\pstMarkAngle{C}{D}{B}{}} \end{pspicture} \end{center} \`A l'aide du rapporteur, indique les mesures des angles (\`a $1^\circ$ pr\`es). {\em Il faut être le plus précis possible.}