Law of Sines - Spherical Case

Spherical Case

In the spherical case, the formula is:

Here, α, β, and γ are the angles at the center of the sphere subtended by the three arcs of the spherical surface triangle a, b, and c, respectively. A, B, and C are the surface angles opposite their respective arcs.

See also Spherical law of cosines and Half-side formula.

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