❶ Kit to assemble four semiregular polyhedra - Archimedean solids: ✯ Truncated tetrahedron; ✯ Truncated cube; ✯ Cuboctahedron; ✯ Truncated octahedron. All polyhedra have comparable sizes. Every polyhedra can be inscribed in a sphere with a diameter = 120 mm.. Difficulty level: Easy. Does not require experience and additional skills. ❷ In this kit:✦ Polyhedrons details; ✦ Assembly instructions with color pictures; ✦ Description of polyhedrons; ✦ Article - who discovered semiregular polyhedra?