(追記) (追記ここまで)
Solid Geometry
The study of surfaces and solids in space, especially cones, cylinders, prisms, pyramids, polyhedra, and spheres. Solid geometry also includes the study of points, lines, shapes, and regions in relation to solids and surfaces. Coordinates are not used.
See also
Geometry, plane geometry, analytic geometry, Euclidean geometry, non-Euclidean geometry
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