Assembly of the first four polyhedra:
- truncated tetrahedron;
- truncated octahedron;
- truncated cube;
1. The radius of the sphere circumscribing the polyhedron;
2. The radius of the sphere inscribed in the polyhedron;
3. The surface area of the polyhedron;
4. The volume of the polyhedron.
What happens if a flat geometric shape, such as a rectangle, begins to rotate rapidly relative to one of its sides?We create a new geometric solid in space by rotation.
The form of the tetrahedron is transmitted by antimony sodium sulfate.