1. raggio   rectangle   semicircle   radius   area   Hint Half-n-half Clue   2. superficie   point   radius   area   square   Half-n-half Clue   3. curva   angle   rectangle   curve   volume   Half-n-half Clue   4. triangolo   cone   point   triangle   rectangle   Half-n-half Clue   5. perimetro   perimeter   cylinder   side   square   Half-n-half Clue   6. volume   volume   cylinder   perimeter   triangle   Half-n-half Clue   7. angolo   diameter   semicircle   angle   volume   Half-n-half Clue