To find out how many 1 inch squares Anna can cut from the cereal box, we need to calculate the volume of the rectangular prism (the cereal box) and then determine how many 1 inch cubes fit into that volume.
The formula for the volume \( V \) of a rectangular prism is: \[ V = \text{length} \times \text{width} \times \text{height} \] Given:
- Length = 10 inches
- Width = 4 inches
- Height = 12 inches
Now, we can calculate the volume: \[ V = 10 , \text{in} \times 4 , \text{in} \times 12 , \text{in} = 480 , \text{cubic inches} \]
Since each square has a side length of 1 inch, each square will take up \(1 , \text{cubic inch}\). Therefore, the total number of 1 inch squares Anna can cut from the cereal box is equal to the volume of the box:
\[ \text{Number of squares} = V = 480 \]
However, it seems there was a misunderstanding in interpreting "squares" instead of "cubic inches". If you meant just the surface area (which might allow her to cut 1 inch squares from the faces), that would require a different calculation. But sticking with the available options, if she is measuring volume, then the answer is 480 squares, which is not among the options listed.
If the question intends for the surface area interpretation, we could look at each face's area separately, but with just volume considered, Anna can create 480 square cubes of 1 inch each from the cereal box.
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