1. cylinder   sen   ensui   entou   shuuichou   Hint Half-n-half Clue   2. curve   kukei   ten   hanen   kyakusen,　kaabu   Half-n-half Clue   3. circle   shikakukei   sen   maru   gawa   Half-n-half Clue   4. side   kyuu   sanjoo、rippoutai   hankei   gawa   Half-n-half Clue   5. area   chokkei   ten   hankei   menseki   Half-n-half Clue   6. sphere   kyuu   gawa   sanjoo、rippoutai   kyakusen,　kaabu   Half-n-half Clue   7. circumference   shuuichou   enryuu   gawa   sankakukei   Half-n-half Clue