Final answer:
The formula for the area of a parallelogram is base multiplied by height.
Step-by-step explanation:
The formula for the area of a parallelogram is base × height (b × h), where the base is the length of one of the sides, and the height is the perpendicular distance from that side to its opposite side.
The concept behind the formula is that the area of a parallelogram can be equated to that of a rectangle of equal base and height. Since the area of a rectangle is found by multiplying its length by its width, the same principle applies to finding the area of a parallelogram.