1. superficie   area   curve   circle   cube   Hint Half-n-half Clue   2. curva   semicircle   perimeter   cube   curve   Half-n-half Clue   3. circonferenza   cone   circumference   angle   square   Half-n-half Clue   4. cilindro   radius   line   cylinder   semicircle   Half-n-half Clue   5. cerchio   circle   radius   cone   line   Half-n-half Clue   6. quadrato   square   point   sphere   circle   Half-n-half Clue   7. sfera   sphere   circle   volume   area   Half-n-half Clue