If a rectangle has an area of 144cm2 what is the perimeter?

To find the perimeter of a rectangle, you need both its length and width. The area of a rectangle is calculated as length × width; with an area of 144 cm², there are multiple combinations of length and width that can yield this area (e.g., 12 cm × 12 cm or 16 cm × 9 cm). The perimeter is calculated as 2(length + width). Without specific dimensions, the perimeter can't be determined uniquely, but it can be expressed as a function of the length and width.