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