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Each of them is limited by different polygons where the polyhedral angles and identical polygons are equal. Furthermore, the same number of equal faces meet at each vertex. In the same order, each of these solids can be inscribed into a sphere.

All these thirteen names make your head spin when you see them for the first time. However, it is possible to sort things out, understand, and remember them.

The most famous building in Kazan (a city in Russia) and its main symbol is Tower Syuyumbike. It...

ARCHIMEDES (287 - 212 BC) - Ancient Greek mathematician, physicist, and mechanic. Archimedes is...

Quite often, a question about the practical use of paper models pops up. What is the point of...

The article in “Science and Life” tells about an interesting way of making polyhedra....

At first glance, it may seem that glue's choice is quite simple, especially for the paper...

What happens if a flat geometric shape, such as a rectangle, begins to rotate rapidly relative to...