EntityQ46463· pop 39· linked from 282 articlesspherical trigonometrySign in to savebranch of spherical geometry that deals with the relationships between trigonometric functions of the sides and angles of the spherical polygonsConnectionslaw of sinesEntitygeodesic curveEntityJean-Baptiste Joseph DelambreEntityastronomyEntityInternational Standard Book NumberEntitytrigonometryEntityangleEntitylinear algebraEntitysphereEntitypolygonEntityEuclidean vectorEntitydigital object identifierEntitygeodesyEntityEuclidean geometryEntityradianEntitytrigonometric functionEntityInternet ArchiveEntitynavigationEntityJohn NapierEntitygroup theoryEntityCategoriesSpherical trigonometry