CirclesGeometry › CirclesCircle properties, arcs, sectors, chords, tangent lines, and inscribed anglesAll Terms (21)AnnulusArc of a CircleCentral AngleChordCircleCircumferenceCircumscribableCircumscribedDiameter of a Circle or SphereDiametrically OpposedDiskGreat CircleInscribed Angle in a CircleMajor ArcMinor ArcRadius of a Circle or SphereSecant LineSector of a CircleSegment of a CircleSemicircleTangent LineMore in GeometryTriangles & Congruence56Angles & Lines47Area & Perimeter16Surface Area & Volume46Quadrilaterals & Polygons33Platonic Solids & Polyhedra18Geometric Transformations16Geometry Foundations16
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