diff --git a/4e/15_Pythagore_reciproque/exercises.tex b/4e/15_Pythagore_reciproque/exercises.tex
index 995d5bc..700d248 100644
--- a/4e/15_Pythagore_reciproque/exercises.tex
+++ b/4e/15_Pythagore_reciproque/exercises.tex
@@ -273,8 +273,8 @@ Pouvez-vous l'aider?
                 \begin{tikzpicture}[baseline=(a.north west), rotate=0, scale=0.7]
                     \draw[fill=blue!20] 
                     (0,0) -- node[ midway, sloped, below]{3cm}
-                    (-3,0) -- node[midway, sloped, above]{2cm} 
-                    (-3,2) -- 
+                    (-3,0) -- 
+                    (-3,2) -- node[midway, sloped, above]{6cm} 
                     cycle;
                     \draw (-3, 0) rectangle ++(0.2, 0.2);
                     \draw (0, 0) rectangle ++(-3, -3);
@@ -284,9 +284,9 @@ Pouvez-vous l'aider?
             \item 
                 \begin{tikzpicture}[baseline=(a.north west), rotate=30, scale=0.7, transform shape]
                     \draw[fill=blue!20] 
-                    (0,0) -- node[ midway, below, sloped]{\large 36cm}
-                    (-3,0) -- node[midway, above, sloped]{\large 77cm} 
-                    (-3,2) -- 
+                    (0,0) -- node[ midway, below, sloped]{\large 10cm}
+                    (-3,0) -- 
+                    (-3,2) -- node[midway, above, sloped]{\large 14cm} 
                     cycle;
                     \draw (-3, 0) rectangle ++(0.2, 0.2);
                     \draw (0, 0) rectangle ++(-3, -3);
@@ -296,9 +296,9 @@ Pouvez-vous l'aider?
             \item 
                 \begin{tikzpicture}[baseline=(a.north west), rotate=180, scale=0.7, transform shape]
                     \draw[fill=blue!20] 
-                    (0,0) -- node[ midway, above, sloped, rotate=180]{\large 48m}
-                    (-3,0) -- node[midway, above, sloped]{\large 55m} 
-                    (-3,2) -- 
+                    (0,0) -- node[ midway, above, sloped, rotate=180]{\large 14.5m}
+                    (-3,0) -- 
+                    (-3,2) -- node[midway, above, sloped]{\large 20m} 
                     cycle;
                     \draw (-3, 0) rectangle ++(0.2, 0.2);
                     \draw (0, 0) rectangle ++(-3, -3);
@@ -315,8 +315,8 @@ Pouvez-vous l'aider?
                 \begin{tikzpicture}[baseline=(a.north west), rotate=50, scale=0.7, transform shape]
                     \draw[fill=blue!20] 
                     (0,0) -- node[ midway, sloped, below]{\large 7cm}
-                    (-3,0) -- node[midway, sloped, above]{\large 24cm} 
-                    (-3,2) -- 
+                    (-3,0) --
+                    (-3,2) -- node[midway, sloped, above]{\large 24cm}  
                     cycle;
                     \draw (-3, 0) rectangle ++(0.2, 0.2);
                 \end{tikzpicture}
@@ -325,8 +325,8 @@ Pouvez-vous l'aider?
                 \begin{tikzpicture}[baseline=(a.north west), rotate=40, scale=0.7, transform shape]
                     \draw[fill=blue!20] 
                     (0,0) -- node[ midway, below, sloped]{\large 1,6cm}
-                    (-3,0) -- node[midway, above, sloped]{\large 63cm} 
-                    (-3,2) -- 
+                    (-3,0) -- 
+                    (-3,2) -- node[midway, above, sloped]{\large 6.5cm} 
                     cycle;
                     \draw (-3, 0) rectangle ++(0.2, 0.2);
                 \end{tikzpicture}
@@ -335,8 +335,8 @@ Pouvez-vous l'aider?
                 \begin{tikzpicture}[baseline=(a.north west), rotate=100, scale=0.7, transform shape]
                     \draw[fill=blue!20] 
                     (0,0) -- node[ midway, above, sloped, rotate=180]{\large 6.5m}
-                    (-3,0) -- node[midway, above, sloped]{\large 72m} 
-                    (-3,2) -- 
+                    (-3,0) -- 
+                    (-3,2) -- node[midway, above, sloped]{\large 9m} 
                     cycle;
                     \draw (-3, 0) rectangle ++(0.2, 0.2);
                 \end{tikzpicture}
@@ -345,8 +345,8 @@ Pouvez-vous l'aider?
                 \begin{tikzpicture}[baseline=(a.north west), rotate=0, scale=0.7, transform shape]
                     \draw[fill=blue!20] 
                     (0,0) -- node[ midway, above, sloped, rotate=180]{\large 2m}
-                    (-3,0) -- node[midway, above, sloped]{\large 1m} 
-                    (-3,2) -- 
+                    (-3,0) -- 
+                    (-3,2) -- node[midway, above, sloped]{\large 10m} 
                     cycle;
                     \draw (-3, 0) rectangle ++(0.2, 0.2);
                 \end{tikzpicture}
diff --git a/4e/15_Pythagore_reciproque/plan_de_travail.pdf b/4e/15_Pythagore_reciproque/plan_de_travail.pdf
index 1f2a6de..6e5f053 100644
Binary files a/4e/15_Pythagore_reciproque/plan_de_travail.pdf and b/4e/15_Pythagore_reciproque/plan_de_travail.pdf differ