What are the missing numbers in this sequence of ordered triplets?
{4, 6, ?}
{6, 12, ?}
{8, ?, 6}
{?, 30, 20}
{20, ?, 12}

Solid       |{F,  E,  V}


------------+------------


Tetrahedron |{4,  6,  4}


Cube        |{6,  12, 8}


Octahedron  |{8,  12, 6}


Dodecahedron|{12, 30, 20}


Icosahedron |{20, 30, 12}

F=faces, E=edges, V=vertecies

Posted by Brian Smith on 2003-12-12 10:42:48