1. edge   bordo   poligono   concavo   raggio   Hint Half-n-half Clue   2. segment   parallelogramma   segmento   emisfero   poligono   Half-n-half Clue   3. quadrangle   piramide   linee parallele   poligono   quadrangolo   Half-n-half Clue   4. convex   piramide   parallelogramma   konvex   ovale   Half-n-half Clue   5. oval   pentagono   quadrangolo   ovale   raggio   Half-n-half Clue   6. ellipse   parallelogramma   ellisse   concavo   piramide   Half-n-half Clue   7. vertex   linea retta   prisma   vertice   piano   Half-n-half Clue