1. triángulo   line   triangle   perimeter   circumference   Hint Half-n-half Clue   2. circunferencia   circumference   circle   cube   side   Half-n-half Clue   3. línea   line   rectangle   side   triangle   Half-n-half Clue   4. diámetro   diameter   angle   triangle   radius   Half-n-half Clue   5. cuadrado   circle   square   curve   area   Half-n-half Clue   6. cilindro   radius   cylinder   circle   cone   Half-n-half Clue   7. curva   volume   curve   radius   cylinder   Half-n-half Clue