How is the area of a rectangle calculated?

The area of a rectangle is calculated using the formula ( \text{Area} = \text{Length} \times \text{Width} ). This formula is derived from the basic principle of area measurement, where you multiply the length of the rectangle by its width to find the total space enclosed within its boundaries.

In more detail, when you multiply the length by the width, you are essentially counting how many unit squares can fit into the rectangle. For example, if a rectangle is 5 units long and 3 units wide, multiplying 5 by 3 gives you 15, meaning that there are 15 square units within that rectangle.

Other formulas like the perimeter calculation, which involves adding lengths and widths together, or the expression that includes doubling these sums, do not represent the area but rather the distance around the rectangle. Thus, the multiplication directly relates to the measurement of area, confirming that the correct approach for finding the area of a rectangle is indeed to multiply its length by its width.