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Area measures the space inside a two-dimensional figure. The areas of the following figures are shown as a green region by pressing the button below the figure.
Different shapes have different formulas to calculate their areas.
| Figure | Formula |
|---|---|
| Square | A=s^2 |
| Rectangle | A=l w |
| Triangle | A=1/2bh |
| Circle | A=π r^2 |
The areas of three-dimensional shapes can also be measured. In this case, it is referred to as 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 a side length of 1 unit. For example, a square inch is the area of a square with a side length of 1 inch.