Definition:Spherical Triangle/Side/Length
Jump to navigation
Jump to search
Definition
Let $ABC$ be a spherical triangle on a sphere $S$.
Let $AB$ be a side of $ABC$.
The length of $AB$ is defined as the angle subtended at the center of $S$ by $AB$.
Sources
- 1976: W.M. Smart: Textbook on Spherical Astronomy (6th ed.) ... (previous) ... (next): Chapter $\text I$. Spherical Trigonometry: $2$. The spherical triangle.
- Weisstein, Eric W. "Spherical Triangle." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SphericalTriangle.html