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Sigma KEE - ThreeDimensionalFigure
KB Term: 

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three dimensional figure
The class of GeometricFigures that have position and an extension along three dimensions, viz. geometric solids like polyhedrons and cylinders.
Relationships      
Parents geometric figure 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 coneThe class of ThreeDimensionalFigures which are produced by rotating a RightTriangle around its RightAngle.
 cylinderThe class of ThreeDimensionalFigures such that all GeometricPoints that make up the Cylinder are equidistant from a OneDimensionalFigure, known as the axis of the Cylinder.
 hemisphereHemisphereFigure describes a figure that is half of a Sphere
 sphereThe class of ThreeDimensionalFigures such that all GeometricPoints that make up the Sphere are equidistant from a single GeometricPoint, known as the center of the Sphere.


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