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Post Closed as "Not suitable for this site" by Henry Cohn, Igor Rivin, Ricardo Andrade, Chris Godsil, David White

occurred Oct 3, 2013 at 15:24

replaced deprecated tag 'geometry'

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edited Oct 3, 2013 at 14:18

Ricardo Andrade

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geometry mg.metric-geometry

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asked Oct 3, 2013 at 12:57

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Space packing fraction of tetrahedron and octahedron

If four equal size spheres form close-packed tetrahedron, what is the fraction of space that is occupied/unoccupied by the spheres in the tetrahedron.

Similarly, if six equal size spheres form close-packed octahedron, what is the fraction of space that is occupied/unoccupied by the spheres in the octahedron.

geometry