(Redirected from area)
See: Surface, Area, Volume, Square Meter.
- Area is a Quantity expressing the two-Dimensional size of a defined part of a Surface, typically a region bounded by a closed Curve. The term surface area refers to the total area of the exposed surface of a 3-dimensional solid, such as the sum of the areas of the exposed sides of a Polyhedron. Area is an important Invariant in the Differential Geometry of Surfaces.