Law of Sines

Let , , and be the lengths of the Legs of a Triangle opposite Angles , , and . Then the law of sines states that

(1)

(2)

(3)

(4)

(5)

The law of sines for oblique Spherical Triangles states that

(6)

References

Abramowitz, M. and Stegun, C. A. (Eds.). Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, p. 79, 1972.

Beyer, W. H. CRC Standard Mathematical Tables, 28th ed. Boca Raton, FL: CRC Press, p. 148, 1987.

Coxeter, H. S. M. and Greitzer, S. L. Geometry Revisited. Washington, DC: Math. Assoc. Amer., pp. 1-3, 1967.

• Dirichlet's Lemma
• Dirichlet's Principle
• Dirichlet's Test
• Dirichlet's Theorem
• Dirichlet Structure Constant
• Dirichlet Tessellation
• Dirty Beam
• Dirty Map
• Disc
• Disconnected Form
• Disconnectivity
• Discontinuity
• Discontinuous
• Discordant Permutation
• Discrepancy Theorem
• Discrete Distribution
• Discrete Fourier Transform
• Discrete Mathematics
• Discrete Set
• Discrete Uniform Distribution
• Discriminant
• Discriminant (Binary Quadratic Form)
• Discriminant (Elliptic Curve)
• Discriminant (Metric)
• Discriminant (Module)