Calculate the volume of the prism by first finding the total number of half-unit cubes that will fill it. There are 8 half-unit cubes in every unit cube. A.
Number of half-unit cubes = 36
V = 18 cubic units

B.
Number of half-unit cubes = 36
V =
4
1
2
4
2
1
​ cubic units

C.
Number of half-unit cubes = 18
V =
4
1
2
4
2
1
​ cubic units

D.
Number of half-unit cubes = 18
V = 9 cubic units