1. segment   plane   edge   segment   polygon   Hint Half-n-half Clue   2. pyramide   hemisphere   parallel lines   pyramid   quadrilateral   Half-n-half Clue   3. quadrilatère   quadrilateral   heptagon   quadrangle   concave   Half-n-half Clue   4. losange   parallelogram   rhombus   prism   edge   Half-n-half Clue   5. ligne droite   straight line   ray   vertex   hemisphere   Half-n-half Clue   6. parallélogramme   vertex   polygon   straight line   parallelogram   Half-n-half Clue   7. plat   plane   ellipse   polygon   ray   Half-n-half Clue