I think you are referring to the wheels that are called Fuchs. http://www.fuchswheels.com/
a four faced triangle is called a tetrahedron
A six faced 3d shape is called a cube.
they faced ecomonical Social legal Educational & Political SIMPLE
A four-faced solid is called a tetrahedron.
sabre toothed tiger and short faced bears as well as early humans
Violent spring floods.
Running out of food and the provision of shelter.
poor maps and navigation tools
Some problems that early explorers faced was the fact that a ship could sink, they didn't find any riches, or many passengers passed away by these long, hard voyages.
Three obstacles that early European explorers faced were harsh weather conditions, lack of knowledge about the lands they were exploring, and resistance and conflict with indigenous populations.
Enneahedral
Dodecahedron