Area measurement refers to the process of determining the size of a two-dimensional surface or shape. It is typically expressed in square units, such as square meters or square feet. Common shapes include rectangles, triangles, and circles, each with specific formulas to calculate their area. For example, the area of a rectangle is found by multiplying its length by its width. To measure the area of irregular shapes, methods like grid counting or using geometric approximations can be employed. Understanding area measurement is essential in various fields, including architecture, landscaping, and engineering, where accurate space calculations are crucial for planning and design.