1. perimetro   triangle   cone   semicircle   perimeter   Hint Half-n-half Clue   2. cilindro   cylinder   side   perimeter   rectangle   Half-n-half Clue   3. linea   circumference   line   area   angle   Half-n-half Clue   4. diametro   curve   cone   diameter   volume   Half-n-half Clue   5. raggio   cone   triangle   radius   circumference   Half-n-half Clue   6. superficie   triangle   side   square   area   Half-n-half Clue   7. lato   side   diameter   cylinder   cone   Half-n-half Clue