1. círculo   circle   volume   diameter   cube   Hint Half-n-half Clue   2. cuadrado   perimeter   sphere   volume   square   Half-n-half Clue   3. línea   square   diameter   rectangle   line   Half-n-half Clue   4. curva   point   angle   curve   area   Half-n-half Clue   5. circunferencia   volume   circumference   rectangle   square   Half-n-half Clue   6. radio   radius   line   curve   circle   Half-n-half Clue   7. volumen   area   radius   line   volume   Half-n-half Clue