platonic solid

• Выпуклый многогранник с одинаковыми правильными многоугольными гранями и одинаковым количеством граней, сходящихся в каждой вершине. Существует ровно пять таких фигур: тетраэдр, куб, октаэдр, додекаэдр и икосаэдр.

A convex polyhedron with identical regular polygon faces and the same number of faces meeting at each vertex. There are exactly five such shapes: tetrahedron, cube, octahedron, dodecahedron, and icosahedron.

1. Regular polyhedronC1formal

   A convex polyhedron with identical regular polygon faces and the same number of faces meeting at each vertex. There are exactly five such solids: tetrahedron, cube, octahedron, dodecahedron, and icosahedron.

   Правильный многогранник

   • The tetrahedron is the simplest platonic solid, with four triangular faces.
   • Ancient Greek philosophers associated platonic solids with the classical elements.
   • A cube is a platonic solid because all its faces are identical squares.