Geometry
Explore plane geometry; coordinates and transformations; space and geometry beyond euclid. Concepts and connections are available independently of video coverage.
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Solid geometry
Spatial geometry studies incidence, distance and angles among three-dimensional objects.
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Geometric projections
A projection maps spatial objects to a lower-dimensional view according to a chosen rule.
Polyhedra
A polyhedron has polygonal faces meeting along edges and vertices.
Angles
An angle measures rotation between rays sharing an endpoint.
Area and volume
Area measures planar regions and volume measures spatial regions in corresponding squared or cubed units.
Circle geometry
Chord, tangent and inscribed-angle relations connect angles and distances in a circle.
Knowledge connections
- Polyhedra · Related · Map context
- Geometric projections · Related · Map context