1. volume   triangle   cube   volume   angle   Hint Half-n-half Clue   2. triangolo   rectangle   volume   triangle   cylinder   Half-n-half Clue   3. perimetro   point   semicircle   square   perimeter   Half-n-half Clue   4. curva   curve   line   sphere   circumference   Half-n-half Clue   5. diametro   line   rectangle   diameter   angle   Half-n-half Clue   6. linea   semicircle   point   radius   line   Half-n-half Clue   7. punto   cone   point   perimeter   side   Half-n-half Clue