Euler's polyhedron formula
The theorem formulated by Leonhard Euler describes one of the basic properties of convex polyhedra.
The Császár polyhedron is a nonconvex polyhedron with 14 triangular faces.
Calculating the volume of a sphere is possible using an appropriate cylinder and cone.
This animation demonstrates geometric translation in both plane and space.
In this experiment we provide proof of the well-known theorem of Pythagoras with a scale.
The Möbius strip and the Klein bottle are special two-dimensional surfaces with only one...
An entertaining game about different views of spatial objects.
Coloring the vertices, edges and faces of a given cube according to the criteria...
In this experiment we prove that the volume of a cylinder is three times the volume of a cone.