The term "area" refers to the amount of space within a two-dimensional shape or surface. It is commonly measured in square units, such as square meters or square feet. To calculate the area of simple shapes, specific formulas are used, like length multiplied by width for rectangles or using the formula πr² for circles, where π is a mathematical constant and r is the radius. Area is an important concept in various fields, including mathematics, architecture, and land use planning. Understanding area helps in determining how much space is available for activities, such as gardening or building, and is essential for tasks like calculating the amount of paint needed to cover a wall or the size of a plot of land.