diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/03.geometries-space-time/cheatsheet.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/03.geometries-space-time/cheatsheet.fr.md
index 7a422d29a..a9104b50a 100644
--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/03.geometries-space-time/cheatsheet.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/03.geometries-space-time/cheatsheet.fr.md
@@ -45,6 +45,8 @@ tri-lingual use.
 
 #### nivel(es) / niveau(x) / level(s) : 1 and/or 2
 
+**Anglos / angles**
+
 *[needed]* :<br>
 [ES] Foto de un transportador, con papel y lápiz, y trazado de varios ángulos 
 (con una sola imagen animada .gif?) para el nivel 1.<br>
@@ -86,14 +88,43 @@ tri-lingual use.
 *[ToDoAgain]* (? tamaño de los caracteres / taille des caractères / size of characters ...):<br>
 ![](euclidian-space-plane-trigonometry-quadrangle-sum-angle-360deg.png)
 
-*[ToDoAgain]* :<br>
-![](euclidian-space-plane-trigonometry-triangle-sum-angle-180deg.png)
+**Triángulo rectángulo / triangle rectangle / rectangle triangle**
 
 *[ToDoAgain]* :<br>
-![](euclidian-space-plane-trigonometry-triangle-sum-angle-180deg.png)
+![](euclidian-space-plane-trigonometry-right-angled-triangle-hypotenuse-catheti_es.png)
+*[needed]* :<br>
+[ES] Hacer de nuevo en versiones en español, francés e inglés (las palabras son 
+importantes en la figura en este caso).<br>
+[FR] Refaire en versions espagnols, françaises et anglaises (les mots sont importants 
+sur la figure dans ce cas).<br>
+[EN] Do again in Spanish, French and English versions (words are important in the 
+figure in this case).
+
+
+**Seno y coseno / sunis et cosinus / sine and cosine**
 
 *[ToDoAgain]* :<br>
-![](euclidian-space-plane-trigonometry-triangle-sum-angle-180deg.png)
+![](euclidian-space-plane-trigonometry-right-angled-triangle-cosine-sine.png)
+
+y para unos ejercicios de autoevaluación / et pour des exercices d'autoévaluation / 
+and for self-assessment exercises :
+
+*[ReadyForUse]* :<br>
+![](euclidian-space-plane-trigonometry-right-angled-triangle-cosine-sine-exo1.png)
+
+*[ReadyForUse]* :<br>
+![](euclidian-space-plane-trigonometry-right-angled-triangle-cosine-sine-exo2.png)
+
+*[ReadyForUse]* :<br>
+![](euclidian-space-plane-trigonometry-right-angled-triangle-cosine-sine-exo3.png)
+
+*[ReadyForUse]* :<br>
+![](euclidian-space-plane-trigonometry-right-angled-triangle-cosine-sine-exo4.png)
+
+*[ReadyForUse]* :<br>
+![](euclidian-space-plane-trigonometry-right-angled-triangle-cosine-sine-exo5.png)
+
+