# Area

## Calculate the size of a two dimensional shape

An area is a measure of the size of a two-dimensional surface or region. It is typically measured in square units, such as square meters (m²), square feet (ft²), or square centimeters (cm²). The surface area of a standard craft table of 6ft by 2ft 6 inches = 15 square feet.

Areas can be calculated for a wide variety of shapes, including rectangles, circles, triangles, and irregular shapes. The formula for calculating the area of a shape depends on its specific geometry. For example, the area of a rectangle can be calculated by multiplying its length by its width, while the area of a circle can be calculated by multiplying pi (approximately 3.14) by the square of its radius.

Areas are commonly used in fields such as geometry, architecture, engineering, and construction to determine the amount of material needed to cover or fill a given surface, as well as to calculate measurements such as floor space, land area, or the surface area of 3D objects.

#### Imperial areas

• 144 inches = 1 square foot
• 9 square feet = 1 square yard
• 484 square yards = 1 square chain
• 100 square chains = 1 square furlong
• 4,840 square yards = 1 Acre
• 640 acres = 1 square mile
• 64 square furlong = 1 square mile

#### Metric areas

• 10,000 centimetres = 1 square metre
• 10,000 square metres = 1 square hectare