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A pyramid is a polyhedron, one of whose faces is a base. The other faces are triangles having a common vertex.

The pyramid height is a perpendicular section drawn through the top of the pyramid to the plane of its base.

The paper net of the pyramid is a flat geometric figure that completely repeats the solid's surface and, when bending and gluing, allows you to recreate a geometric solid.

Depending on the number of corners of the base, the correct pyramids determine whether they are:

- triangular or trihedral pyramids;

- quadrangular or tetrahedral pyramids;

etc.

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There are five regular polyhedra: a tetrahedron, an octahedron, a cube (also known as a...

So far, we have actively used glue to assemble polyhedrons from the Magic Edges sets. Moreover, we...

A suspended ceiling lamp, or simply a chandelier, has never been so close to exact mathematical...

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