# Spherical Trigonometry Help

Spherical trigonometry focuses on the relationships between angles and sides of spherical triangles. In contrast to plane trigonometry which is based on two dimensional planes, spherical trigonometryis based on three dimensional spherical planes. This trigonometric curriculum includes polygons on spherical figures, relationships with angles and lines, and on a scientific level the angular relationship between planet sand stars.

We provide comprehensive Spherical Trigonometry tutoring for students including the following Spherical Trigonometry topics:

- Angular Relationships
- Astronomy
- Dihedral Angles
- Girard’s Theorem
- Law of Cosines
- Law of Sines
- Napier’s Circle
- Spherical Coordinates
- Spherical Law of Cosines
- Spherical Law of Sines
- Spherical Law of Tangents
- Spherical Polygons
- Spherical Triangles
- Trigonometric Functions