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
  • incidence of planes and lines
  • dihedral angle and solid angle
  • the cube, cuboid, parallelepiped
  • the tetrahedron and other pyramids
  • prisms
  • octahedron, dodecahedron, icosahedron
  • cones and cylinders
  • the sphere
  • other quadrics: spheroid, ellipsoid, paraboloid and hyperboloids.

VideoTwo 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.