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# Area

Area measures the space inside a two-dimensional figure. The areas of the following figures can be shown as a green region by pressing the button below the figure.
Different shapes may have different formulas to calculate their areas.
Figure Name Formula
Square
Rectangle
Triangle
Circle

Three-dimensional shapes can also have their area measured. In this case it is referred to the surface area of the shape, which can be visualized with the help of a net of the solid.

Area is measured in square units. A square unit is defined as the area of a square with side length of unit. For example, a square inch is the area of a square with side length of inch.