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The rhombus shape for constructing a rhombic dodecahedron must have a ratio of diagonals equal to the proportion of the square root of the number 2 (1.414).
For more information about assembling a polyhedron, see the article "calendar rhombododecahedron".
This little "joke" task will keep your kids (students) busy for a while! What plastic tetrahedron*...
Under the guidance of Tatyana Yurievna Timofeyeva, a teacher of mathematics, the guys worked on the...
With the same pattern repeating on each polyhedrons face, it is possible to create an alternating...
The box geometric shape from a distance resembles a rounded shape, emphasizing the similarity with the...
The invention of the calendar is a remarkable event for humanity. The fact that a year consists of...
There are five regular polyhedra: a tetrahedron, an octahedron, a cube (also known as a...
Is it possible to cut a triangle into such several parts so that one can put a square together?...