Develop spatial imagination
0.00 $
0 item(s)
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
A polyhedron is a solid bounded by flat polygons, which...
The plot of the fantastic blockbuster "The Fifth Element", is built on the legend that there are...
Can a polyhedron be curved? Perhaps this is some kind of mistake? Or maybe this is not a...
Find a gift for the schoolboy that will be interesting, useful, and also not ruin the family...
Summer is the time you want to spend outdoors. At the desk, the children will sit down in...
The geometric shape of the box from a distance resembles a rounded shape, which emphasizes the...
Is it possible to conduct additional school classes in geometry collecting models of polyhedra? Of...
