KnowraSpherical trigonometryLinked fromLinked fromThe 14 pages that link to Spherical trigonometry, each with the reason it gives.All 14Broader topic 1Related 8Narrower topic 3Compared with 2Islamic astronomyNarrower topic: Its formulas supported calculations of celestial coordinates and directions on Earth.Spherical triangleNarrower topic: Its identities provide the main calculation rules for these figures.Legendre's theorem on spherical trianglesNarrower topic: The theorem converts a spherical-trigonometry problem into a plane-triangle one.