| skos:altLabel | - rules
- Spherical
- spherical
- sphere
- spherical triangle
- Delambre analogies
- Girard's theorem
- Napier's Pentagon
- Napier's analogies
- Napier's circles
- Napier's pentagon
- Napier's rules
- Napier's rules for quadrantal triangles
- Spherical Trigonometry
- Spherical trigonometry#Area
- Spherical trigonometry#Area and spherical excess
- Spherical trigonometry#Excess
- Spherical trigonometry#Girard's theorem
- Spherical trigonometry#Identities
- Spherical trigonometry#Napier's Pentagon
- Spherical trigonometry#Napier's analogies
- Spherical trigonometry#Spherical polygons
- Spherical_trigonometry#Area and spherical excess
- analogue formula in spherical trigonometry
- sine rule
- spherical excess
- spherical geometry
- spherical polygons
- spherical space
- spherical triangle dual
- spherical triangle identities
- spherical triangle problem
- spherical triangles
- spherical trigonometric
- spherical trigonometrical formulae
- spherical trigonometry
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