The face of the polyhedron is formed by truncating the face of a great icosahedron (indicated in green).
A polyhedron consists of 20 groups of such polygons.
In the place of the cross section of the plane, a face is formed in the shape of a pentagonal star.
Video. Rotation of a polyhedron
Under the guidance of Tatyana Yurievna Timofeyeva, a teacher of mathematics, the guys worked on...