1. diamètre   diameter   sphere   radius   side   Hint Half-n-half Clue   2. superficie   area   triangle   circle   angle   Half-n-half Clue   3. rangée   area   line   cone   curve   Half-n-half Clue   4. demi-cercle   sphere   semicircle   cylinder   rectangle   Half-n-half Clue   5. périmètre   square   area   cylinder   perimeter   Half-n-half Clue   6. point   perimeter   circle   point   radius   Half-n-half Clue   7. cercle   point   diameter   cone   circle   Half-n-half Clue