The four medians of a tetrahedron concur in a point which divides each tetrahedron median in the ratio 1:3, the longer segment being on the side of the vertex of the tetrahedron.

# Commandino's Theorem

## See also

Bimedian, Tetrahedron, Tetrahedron Median## Explore with Wolfram|Alpha

## References

Altshiller-Court, N. "Commandino's Theorem." §170 in*Modern Pure Solid Geometry.*New York: Chelsea, pp. 51-52, 1979.Commandino, F. Prop. 17 in

*De centro gravitatis solidorum.*p. 21, 1565.

## Referenced on Wolfram|Alpha

Commandino's Theorem## Cite this as:

Weisstein, Eric W. "Commandino's Theorem."
From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/CommandinosTheorem.html