High Quality Content by WIKIPEDIA articles! In geometry, the gyroelongated square bipyramid is one of the Johnson solids (J17). As the name suggests, it can be constructed by gyroelongating an octahedron by inserting a square antiprism between its congruent halves. It is a deltahedron. The 92 Johnson solids were named and described by Norman Johnson in 1966. In geometry, an octahedron (plural: octahedra) is a polyhedron with eight faces. A regular octahedron is a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.