1. cone   li fang [ti;ti]   san [jia;jiao;jue]   qiu xing   zhui [ti;ti]   Hint Half-n-half Clue   2. area   [ou;qu] yu   xian   [zheng;zheng] fang xing   [chang;zhang] fang xing   Half-n-half Clue   3. rectangle   [ou;qu] yu   [chang;zhang] fang xing   li fang [ti;ti]   san [jia;jiao;jue]   Half-n-half Clue   4. cube   rong [liang;liang]   [chang;zhang] fang xing   li fang [ti;ti]   [zheng;zheng] fang xing   Half-n-half Clue   5. circumference   li fang [ti;ti]   dian   xian   yuan zhou   Half-n-half Clue   6. semicircle   ban jing   zhou [chang;zhang]   ban yuan   rong [liang;liang]   Half-n-half Clue   7. perimeter   qiu xing   ban yuan   zhi jing   zhou [chang;zhang]   Half-n-half Clue