1. circunferência   radius   cylinder   curve   circumference   Hint Half-n-half Clue   2. círculo   volume   semicircle   area   circle   Half-n-half Clue   3. superfície, área   area   curve   rectangle   square   Half-n-half Clue   4. volume   triangle   volume   area   sphere   Half-n-half Clue   5. retângulo   diameter   angle   sphere   rectangle   Half-n-half Clue   6. semicírculo   volume   perimeter   rectangle   semicircle   Half-n-half Clue   7. lado   cone   curve   side   triangle   Half-n-half Clue