1. linea retta   perpendicular lines   pentagon   straight line   convex   Hint Half-n-half Clue   2. raggio   parallelogram   ray   straight line   oval   Half-n-half Clue   3. poligono   segment   pyramid   polygon   rhombus   Half-n-half Clue   4. emisfero   edge   hemisphere   quadrilateral   oval   Half-n-half Clue   5. bordo   edge   perpendicular lines   parallel lines   prism   Half-n-half Clue   6. ellisse   rhombus   ellipse   pyramid   edge   Half-n-half Clue   7. esagono   rhombus   vertex   hexagon   quadrilateral   Half-n-half Clue