1. quadrilatère   polygon   rhombus   heptagon   quadrilateral   Hint Half-n-half Clue   2. ovale   hexagon   oval   polygon   concave   Half-n-half Clue   3. polygone   polygon   oval   convex   quadrangle   Half-n-half Clue   4. lignes parallèles   edge   parallel lines   segment   pyramid   Half-n-half Clue   5. segment   oval   rhombus   segment   parallel lines   Half-n-half Clue   6. pentagone   parallel lines   polygon   pentagon   quadrangle   Half-n-half Clue   7. sommet   perpendicular lines   oval   vertex   pentagon   Half-n-half Clue