Simple Knowledge base Browser - ClosedTwoDimensionalFigure

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Sigma KEE - ClosedTwoDimensionalFigure

KB Term:

封閉的二維圖

Any TwoDimensionalFigure which has a well defined interior and exterior.

Relationships
Parents	二維圖	The class of GeometricFigures that have position and an extension along two dimensions, viz. plane figures like circles and polygons.
Children	圈子部門	A slice of a Circle, i.e. any ClosedTwoDimensionalFigure which consists of two Radii and the arc of the Circle that they bound.
	橢圓	The class of ClosedTwoDimensionalFigures that are produced by the intersection of a Cone with a ClosedTwoDimensionalFigure.
	多邊形	A ClosedTwoDimensionalFigure that is composed exclusively of straight lines, i.e. OneDimensionalFigures.