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A sphere is the set of points which are all within the same distance from a given point in space.
sphere, radius, diameter, great circle, plane section, solid of revolution, geometry, mathematics
The surface of a sphere consists of the set of points which are all at the same distance from a given point in space.
Calculating the volume of a sphere is possible using an appropriate cylinder and cone.
The sum of the volume of the ´tetrahedrons´ gives an approximation of the volume of the sphere.
The Császár polyhedron is a nonconvex polyhedron with 14 triangular faces.
This animation demonstrates various types of cones and pyramids.
This animation demonstrates various types of cylindrical solids as well as their lateral surfaces.
This animation demonstrates various groups of solids through examples.
The Möbius strip and the Klein bottle are special two-dimensional surfaces with only one side.
This animation presents the formulas to calculate the perimeter and area of shapes as well as the surface area and volume of solids.
This animation demonstrates the five regular three-dimensional (or Platonic) solids, the best known of which is the cube.
This animation demonstrates several types of prisms, from general to regular.
This special concave polyhedron was named after a Hungarian mathematician.
Rotating a geometric shape around a line within its geometric plane as an axis results in a solid of revolution.
An exercise about the generation of solids of revolution.
This animation demonstrates geometric rotation, a type of geometric transformation both in plane and space.