1. polygon   ovale   poligono   raggio   vertice   Hint Half-n-half Clue   2. concave   quadrangolo   concavo   pentagono   parallelogramma   Half-n-half Clue   3. plane   prisma   piramide   piano   linee parallele   Half-n-half Clue   4. pyramid   piramide   linea retta   vertice   piano   Half-n-half Clue   5. prism   prisma   losanga   bordo   ellisse   Half-n-half Clue   6. convex   konvex   raggio   poligono   bordo   Half-n-half Clue   7. rhombus   losanga   bordo   ovale   pentagono   Half-n-half Clue