One way a rectangular prism can have a volume of 12 cubic units is by having dimensions of 1 unit by 2 units by 6 units. Another way is 1 unit by 3 units by 4 units. Lastly, it can also be 2 units by 2 units by 3 units.
Looking across each row of the table, we see that there is a pattern in which the total number of cubes needed to make a rectangular prism with a volume of 12 cubic units increases as the dimensions of the prism increase.
To find how many unit cubes are needed to make a model of a rectangular prism with dimensions of 4 units long, 3 units wide, and 2 units tall, we can look at the table. By adding up the number of cubes in each row, we find that the total number of unit cubes needed is 24.