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Sigma KEE - TwoDimensionalFigure

TwoDimensionalFigure

The class of GeometricFigures that have position and an extension along two dimensions, viz. plane figures like circles and polygons.

Relationships
Parents	GeometricFigure	The class of all geometric figures, i.e. the class of all abstract, spatial representations. The instances of this class are GeometricPoints, TwoDimensionalFigures or ThreeDimensionalFigures.
Children	ClosedTwoDimensionalFigure	Any TwoDimensionalFigure which has a well defined interior and exterior.
	OpenTwoDimensionalFigure	The class of TwoDimensionalFigures that are not ClosedTwoDimensionalFigures.