What is the formula for the area of a rectangle?

The formula for the area of a rectangle is derived from the definition of area, which is the amount of space enclosed within the boundaries of a shape. For a rectangle, the area is calculated by multiplying the length of the rectangle by its width. This relationship holds true because the area can be visualized as filling the rectangle with unit squares, where the number of squares along the length multiplied by the number of squares along the width gives the total number of unit squares that fit within the rectangle. Therefore, the area can be expressed as Area = length * width.

This fundamental geometric principle is a key concept in mathematics and is applicable in various real-world scenarios, such as determining the amount of flooring needed to cover a rectangular room or the quantity of paint required for covering a rectangular surface.