5 정다면체(Platonic Solid) 전개도
※ 출처 - http://www.geometrycode.com/ 정사면체(tetrahedron) 정육면체(cube, hexahedron) 정팔면체(octahedron) 정십이면체(dodecahedron) 정이십면체(icosahedron) All images from GeometryCode.com; used with permission of Elysian Publishing/Intent Design Studio, which provides educational services on Sacred Geometry and interconnectedness.