Three dimensional figure (solid geometry)
Three dimensional figure (solid geometry)
Solid geometry is the traditional name for the geometry of three-dimensional Euclidean space.
Stereometry deals with the measurements of volumes of various solid figures (three-dimensional figures) including pyramids, prisms and other polyhedrons; cylinders; cones; truncated cones; and balls bounded by spheres.
Basic topics in solid geometry and stereometry include
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incidence of planes and lines
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dihedral angle and solid angle
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the cube, cuboid, parallelepiped
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the tetrahedron and other pyramids
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prisms
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octahedron, dodecahedron, icosahedron
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cones and cylinders
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the sphere
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other quadrics: spheroid, ellipsoid, paraboloid and hyperboloids.
Video: Two dimensional and Three dimensional shapes
Techniques
Various techniques and tools are used in solid geometry. Among them, analytic geometry and vector techniques have a major impact by allowing the systematic use of linear equations and matrix algebra, which are important for higher dimensions.
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