1. zhui [ti;ti]   triangle   cone   area   semicircle   Hint Half-n-half Clue   2. ban yuan   angle   area   cube   semicircle   Half-n-half Clue   3. [juan;juan;quan] zi   semicircle   line   cone   circle   Half-n-half Clue   4. [bian;bian]   cylinder   side   rectangle   square   Half-n-half Clue   5. yuan zhou   angle   diameter   circumference   volume   Half-n-half Clue   6. [chang;zhang] fang xing   curve   cone   rectangle   cube   Half-n-half Clue   7. qiu xing   circumference   semicircle   perimeter   sphere   Half-n-half Clue