1. 球   side   cube   sphere   diameter   Hint Half-n-half Clue   2. 円、丸　   perimeter   semicircle   circle   cube   Half-n-half Clue   3. 角   semicircle   sphere   circumference   angle   Half-n-half Clue   4. 三乗、立方体、   curve   diameter   triangle   cube   Half-n-half Clue   5. 線　   area   diameter   line   sphere   Half-n-half Clue   6. 三角形   triangle   area   line   angle   Half-n-half Clue   7. 円錐   cone   area   semicircle   rectangle   Half-n-half Clue