1/2 times 4 x (9+5)
9+5=14
1/2=.5
.5x4=2
2x14=28
1. 12 * 4 * 10 = 480 m^3
2. pi * 8^2 * 14 = 896 pi cm^3
3. (1/2) 10 * 10 * 13 = 650 mm^3
4. just like 3
5. 13 * 6 * 2 = 156 m^3
6. just like 1
7. just like 1
8. (1/2) (4) ( 9 + 5) (6) = 168 cm^3
9. just like 2