There are five platonic solids, the tetrahedron, cube, octahedron, dodecahedron and icosahedron. A prism is a 3D shape with a constant polygon shaped cross-section. A prism is named by the shape ...

The ancient Greek mathematician Euclid proved in his Elements of Geometry that there are only five Platonic solids – the regular tetrahedron (four sides that are equilateral triangles), the cube (six ...

Hidden within this matrix are all five Platonic solids - the cube, tetrahedron, octahedron, icosahedron, and dodecahedron. These perfect three-dimensional forms are the building blocks of physical ...