1. angle   shuuichou   kaku   menseki   enryuu   Hint Half-n-half Clue   2. circle   entou   menseki   shikakukei   maru   Half-n-half Clue   3. area   entou   hanen   menseki   ensui   Half-n-half Clue   4. circumference   chokkei   enryuu   ensui   sankakukei   Half-n-half Clue   5. sphere   sen   ten   ensui   kyuu   Half-n-half Clue   6. cone   chokkei   ensui   menseki   kyuu   Half-n-half Clue   7. curve   kyakusen,　kaabu   shuuichou   sen   ten   Half-n-half Clue