Art of Problem Solving

AoPS Online

Law of Cosines

Revision as of 21:21, 21 June 2006 by Rrusczyk (talk | contribs) (edited TeX to include \cos function)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

The Law of Cosines is a formula used in finding lengths and angles of a triangle. For sides a, b, and c with opposite angles A, B, and C respectively: $c^2 = a^2 + b^2 - 2ab\cos C$

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=Law_of_Cosines&oldid=3751"

© 2024 AoPS Incorporated