1. rectángulo   curve   circle   rectangle   circumference   Hint Half-n-half Clue   2. línea   line   cone   semicircle   curve   Half-n-half Clue   3. cono   triangle   cone   volume   point   Half-n-half Clue   4. volumen   angle   volume   point   cube   Half-n-half Clue   5. punto   square   point   perimeter   line   Half-n-half Clue   6. esfera   sphere   volume   area   curve   Half-n-half Clue   7. semicírculo   semicircle   volume   triangle   line   Half-n-half Clue