# Sines of the Dihedral Angles of a Tetrahedron

Initializing live version

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

Let be a tetrahedron with dihedral angles , , , , , . A theorem relating the sines of the dihedral angles states that .

[more]
Contributed by: Izidor Hafner (February 2017)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

A proof is described in [1, pp. 111].

Reference

[1] V. V. Prasolov and I. F. Scharjagin, *Problems in Stereometry* (Russian), Moscow: Nauka, 1989.

## Permanent Citation