Die and Dice: Hint

You have a giant die with side length of 20 inches. If you paint the die green and then partition it into smaller cubes/dice of length 1 inch, how many of these smaller dice will have paint on two of their faces?

See below how each one of the die’s faces looks like after the partition. What do numbers 1, 2, and 3 represent?

Die and Dice Hint

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