Use the image to answer the question.
An illustration shows a rectangular prism made of cubes placed as 3 columns, 2 cubes high and 2 cubes deep.
A right rectangular prism is made up of 12 cubes that are 12 -inch on each side. Use the cube method or the formula method to find the volume. Provide your answer as an improper fraction reduced to the lowest terms.
The formula for finding the volume of a rectangular prism is length x width x height.
In this case, the length is 3 cubes (3 x 1 = 3 inches), the width is 2 cubes (2 x 1 = 2 inches), and the height is also 2 cubes (2 x 1 = 2 inches).
Therefore, the volume of the rectangular prism is 3 x 2 x 2 = 12 cubic inches.
Since the length, width, and height are all the same (1 inch), the volume can also be calculated as side x side x side, which is 12 x 12 x 12 = 1728 cubic inches.
So, the volume of the right rectangular prism made up of 12 cubes that are 1-inch on each side is 1728/1 = 1728.