diff --git a/rapport/presentation.tex b/rapport/presentation.tex
index 6a47e75ca340a882987472154b7bc3b7f3998a2c..8ef47dc1f640bed02d990c3b2ae2a3de4a655724 100644
--- a/rapport/presentation.tex
+++ b/rapport/presentation.tex
@@ -217,20 +217,26 @@
     \begin{exampleblock}{Exemple~: berlin52 (52 points, valeur optimale à 7542)}
         \begin{figure}
             \centering
-            \subfloat[2-approximation (10114)]{
-                \includegraphics[width=3.5cm]{../images/00_APPROX_berlin52_approx2.png}
-            }
-            \subfloat[2-approx + 2-OPT (7755)]{
-                \includegraphics[width=3.5cm]{../images/00_APPROX_berlin52_approx2_2opt.png}
-            }
-
-            
-            \subfloat[glouton (9951)]{
-                \includegraphics[width=3.5cm]{../images/00_APPROX_berlin52_glouton.png}
-            }
-            \subfloat[glouton + 2-OPT (7657)]{
-                \includegraphics[width=3.5cm]{../images/00_APPROX_berlin52_glouton_2opt.png}
-            }
+            \begin{overlayarea}{\linewidth}{4cm}
+                \only<1>{
+                    \centering
+                    \subfloat[2-approximation (10114)]{
+                        \includegraphics[width=4.5cm]{../images/00_APPROX_berlin52_approx2.png}
+                    }
+                    \subfloat[2-approx + 2-OPT (7755)]{
+                        \includegraphics[width=4.5cm]{../images/00_APPROX_berlin52_approx2_2opt.png}
+                    }
+                }
+                \only<2>{
+                    \centering
+                    \subfloat[glouton (9951)]{
+                        \includegraphics[width=4.5cm]{../images/00_APPROX_berlin52_glouton.png}
+                    }
+                    \subfloat[glouton + 2-OPT (7657)]{
+                        \includegraphics[width=4.5cm]{../images/00_APPROX_berlin52_glouton_2opt.png}
+                    }
+                }
+            \end{overlayarea}
         \end{figure}
     
     \end{exampleblock}
@@ -529,7 +535,7 @@ Implémenté dans NetworkX.
     \begin{exampleblock}{Sur un problème avec 225 points}
         \begin{figure}
             \centering
-            \begin{overlayarea}{6cm}{4cm}
+            \begin{overlayarea}{\linewidth}{4cm}
                 \only<1>{\centering \includegraphics[width=7cm]{../images/0CVX_tsp225_simple_1.png} \\ Étape 1}
                 \only<2>{\centering \includegraphics[width=7cm]{../images/0CVX_tsp225_simple_11.png} \\ Étape 11 }
                 \only<3>{\centering \includegraphics[width=7cm]{../images/0CVX_tsp225_simple_21.png} \\ Étape 21}