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Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.
History, Measurement & Regions
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triangle circle displaystyle formula square surface areas shape given calculus perimeter used two length units function formulas rectangle base height
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Area | Common symbols | A[a] or S | 1.00 | infobox |
| Area | Dimension | L 2 {\displaystyle {\mathsf {L}}^{2}} | 1.00 | infobox |
| Area | In SI base units | 1 m2 | 1.00 | infobox |
| Area | SI unit | Square metre [m2] | 1.00 | infobox |
| Area | is a | measure of a region's size on a surface | 0.90 | text |
| Area | is a | square metre | 0.90 | text |
| triangles | instance of | and the area of any other shape or surface is a dimensionless real number.There are several well-known formulas for the areas of simple shapes | 0.80 | text |
| rectangles | instance of | and the area of any other shape or surface is a dimensionless real number.There are several well-known formulas for the areas of simple shapes | 0.80 | text |
| and circles | instance of | and the area of any other shape or surface is a dimensionless real number.There are several well-known formulas for the areas of simple shapes | 0.80 | text |
| a sphere | instance of | the problem of determining the area of plane figures was a major motivation for the historical development of calculus.For a solid shape | 0.80 | text |
| cone | instance of | the problem of determining the area of plane figures was a major motivation for the historical development of calculus.For a solid shape | 0.80 | text |
| or cylinder | instance of | the problem of determining the area of plane figures was a major motivation for the historical development of calculus.For a solid shape | 0.80 | text |
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