1. san [jia;jiao;jue]   point   triangle   volume   cylinder   Hint Half-n-half Clue   2. dian   radius   sphere   rectangle   point   Half-n-half Clue   3. rong [liang;liang]   volume   sphere   cube   semicircle   Half-n-half Clue   4. [jia;jiao;jue] [du;duo]   cube   angle   diameter   point   Half-n-half Clue   5. [ou;qu] yu   circle   area   perimeter   square   Half-n-half Clue   6. zhi jing   rectangle   diameter   radius   curve   Half-n-half Clue   7. zhou [chang;zhang]   perimeter   circumference   radius   cube   Half-n-half Clue