## See also

Binormal Vector,

Centroidal Line,

Dihedral Angle,

Isoclinal
Line,

Isoclinal Plane,

Normal
Vector,

Orthocentric Line,

Tangent
Vector
## Explore with Wolfram|Alpha

## References

Altshiller-Court, N. "The Trihedral Angle." Ch. 2 in *Modern
Pure Solid Geometry.* New York: Chelsea, pp. 27-41, 1979.## Referenced
on Wolfram|Alpha

Trihedron
## Cite this as:

Weisstein, Eric W. "Trihedron." From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/Trihedron.html

## Subject classifications