Assemble fragments of broken three-dimensional shapes by rotating the models.
This animation demonstrates geometric reflection, a type of geometric transformation both in plane and space.
This animation demonstrates geometric translation in both plane and space.
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.
Rotating a rectangle around its axes of symmetry or around its sides results in solids of revolution.
This animation demonstrates the angle of inclination of lines and planes in various positions.
This animation demonstrates the relative position of lines and planes.
A sphere is the set of points which are all within the same distance from a given point in space.
The surface of a sphere consists of the set of points which are all at the same distance from a given point in space.
3-dimensional Cartesian coordinate system with illustrations and exercises that develop spatial perception.
Calculating the volume of a sphere is possible using an appropriate cylinder and cone.