you could multiply base times height then you will get your answer and that is how you do it.
The 180 degree acts like both a horizontal (y axis) and vertical (x axis) reflection in one action.Precisely. Although they appear similar at first,rotating a figure 180 degrees swaps the image left-to-right and top-to-bottom at once.
The probability of rolling factors of 4 are 4/1 or 2/1