A polygon is regular if it is uniform and its faces are all alike. The regular convex polyhedra ... equilateral triangles), the cube (six sides that are squares), the regular octahedron (eight sides ...
A 3D shape with regular polygonal faces, meeting at equal angles, is a platonic solid. There are five platonic solids, the tetrahedron, cube, octahedron, dodecahedron and icosahedron. A prism is a ...
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