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SUMO
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Sigma KEE  TwoDimensionalAngle
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two dimensional angle
Any two
OneDimensionalFigure
s (i.e. straight lines) meeting at a single
GeometricPoint
.
Relationships
Parents
open two dimensional figure
The class of
TwoDimensionalFigure
s that are not
ClosedTwoDimensionalFigure
s.
Children
acute angle
Any
TwoDimensionalAngle
that has an
angularMeasure
that is less than 90
AngularDegree
s.
oblique angle
Any
TwoDimensionalAngle
that has an
angularMeasure
that is greater than 90
AngularDegree
s.
right angle
Any
TwoDimensionalAngle
that has the
angularMeasure
of 90
AngularDegree
s.
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