Question five. On a regular die, the total number of dots on two opposite faces is always seven. Which one of the dice shown below can be a regular die? To start off this solution, let's see what the different opposite faces of a regular die would be. On a regular die, we have six sides, so we'll be using the numbers one through six. Starting off with one, we get one plus six, then we have two plus five, and then we have three plus four. We know that these will always be opposite faces on a regular die. Now, let's take a look at our options. We start off by looking at option B. We will notice that we can see the five face and the two face, so they are not on opposite sides. This cannot be the answer. We look at C. We can see one and six. They are not on opposite sides. On answer D, we see four and three. Those are not on opposite sides. And then on die E, we see the five side and the two side. Again, these are not on opposite sides. So, we are only left with one answer, and our answer will be A.

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