1. 容量   square   volume   cylinder   area   Hint Half-n-half Clue   2. 長方形   line   rectangle   semicircle   triangle   Half-n-half Clue   3. 正方形   circumference   point   square   curve   Half-n-half Clue   4. 半圓   semicircle   rectangle   triangle   perimeter   Half-n-half Clue   5. 錐體   perimeter   cone   sphere   radius   Half-n-half Clue   6. 邊   side   area   point   perimeter   Half-n-half Clue   7. 球形   sphere   square   cylinder   diameter   Half-n-half Clue