Which method would determine the volume of the prism with dimensions 2 times 2 and one-fourth times 4 shown below? A prism has a length of 2 and one-fourth, height of 4, and width of 2 inches. There are 8 one-quarter cubes and 16 unit cubes so (8 times one-fourth) + 16 will give the volume. There are 8 one-quarter cubes and 8 unit cubes so (8 times one-fourth) + 8 will give the volume. There are 8 one-quarter cubes and 16 unit cubes so (8 times 4) + 16 will give the volume. There are 8 one-quarter cubes and 8 unit cubes so (8 times 4) + 8 will give the volume.