1. hexagon   concavo   esagono   ellisse   linee parallele   Hint Half-n-half Clue   2. oval   poligono   bordo   parallelogramma   ovale   Half-n-half Clue   3. concave   concavo   bordo   piramide   konvex   Half-n-half Clue   4. quadrilateral   quadrilateral   segmento   piano   bordo   Half-n-half Clue   5. segment   ovale   ellisse   segmento   piramide   Half-n-half Clue   6. convex   pentagono   linea retta   konvex   emisfero   Half-n-half Clue   7. quadrangle   quadrangolo   linea retta   piramide   parallelogramma   Half-n-half Clue