1. sphère   cone   circle   sphere   curve   Hint Half-n-half Clue   2. cercle   perimeter   line   circle   curve   Half-n-half Clue   3. rectangle   angle   cone   rectangle   radius   Half-n-half Clue   4. point   volume   square   point   cube   Half-n-half Clue   5. périmètre   circle   perimeter   circumference   point   Half-n-half Clue   6. cylindre   volume   semicircle   cylinder   radius   Half-n-half Clue   7. rayon   diameter   radius   area   square   Half-n-half Clue