Divide the icosahedron (into parts)
It turns out that it is possible to make up an icosahedron using the groups of more simple solids. One of such solids is a polyhedron in the shape of tetrahedron!
In our case three inner faces of the polyhedron should be slightly lower than those of the regular tetrahedron, as you can see in the figure. Regular triangle still remains in the basis of the polyhedron.
Combining these 20 “tetrahedra” together, we get an icosahedron.
Just imagine how 20 totally identical polyhedra meet together at a single point and make up a completely new polyhedron – icosahedron!
Video: “Dividing the icosahedron”
The following video, made by our partners, the team of “ART KOSEKOMA”, shows this transformation.
Model
You will need 20 models to make an icosahedron. Download net.
Video: Making an icosahedron using 20 “tetrahedra”
Do you need a demonstration? Let’s try a paper model…
Popular
Metal processing is a very complex process. But there are masters who can cut out polyhedrons from metal...
It is round, but nobody canceled the shape net of parts for its...
The monument to the “Truncated large dodecahedron” polyhedron was discovered in Obninsk (Russia)...
This group of five geometric solids was given the name of the ancient Greek scientist Plato....
According to some spiritual teachings, a polyhedron already familiar to us — a compound of two...
A star is an image of divine idea and will, due to them our Light and Universe were created and...
Archimedes, a scientist from Ancient Greece, discovered thirteen types of polyhedra, now called...
