0.00 $
 0 item(s)

Divide the icosahedron (into parts)

del ikosaedr1

Is it possible to make up an icosahedron using more simple polyhedra?

 

del ikosaedr2

del ikosaedr4

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!

del ikosaedr3

Video: “Dividing the icosahedron”

The following video, made by our partners, the team of “ART KOSEKOMA”, shows this transformation.

Model

del ikosaedr5

You will need 20 models to make an icosahedron.

Video: Making an icosahedron using 20 “tetrahedra”

Do you need a demonstration? Let’s try a paper model…

Popular

Challenging task about a polyhedron

(challenging task called “a star”)

Which glue to choose?

At first glance it may seem that the choice of glue, the task is quite simple, especially for...

Polyhedron as an emblem of the town

The founders of the town called Mirniy, situated in Russia in Arkhangelsk region, put an image of...

Polyhedra on the stamps

Stamps cover all significant events happening in the world. Much attention was paid to polyhedra...

POLYHEDRA MADE OF RIBBON

The article in “Science and Life” (1989, №6, Cherenkov A. Khramov V.) tells about an interesting...

Polyhedra in architecture. Part 3. The Lighthouse of Alexandria

The Lighthouse of Alexandria, one of the Seven Wonders, was built in the 3d century BC in an...

Polyhedra in architecture. Part 1

Architectural masterpieces located in different parts of the world reflect the human soul. Secret...