Which formula represents the area of a rectangle?

The area of a rectangle is determined by multiplying its length and width. The formula for this calculation is expressed as length times width, which is denoted mathematically as lw. This reflects the two-dimensional nature of the rectangle, where both dimensions contribute to the total space contained within its boundaries.

The other formulas represent different geometric shapes: the first option relates to the volume of a rectangular prism, the third option is the formula for the volume of a cylinder, and the fourth option applies to the volume of a cone. None of these apply to the calculation of area for a rectangle, which is specifically captured by the length and width formula.