Resposta
$c^2 = a^2 + b^2 - 2ab\cos(C)$.
Explicação
Use the Law of Cosines when two sides and the included angle (SAS) are known, or when all three sides (SSS) are known.
Início / Biblioteca / ACT Mastery: English, Math, Reading & Science / Flashcard sintético
What is the law of cosines for a triangle with sides $a, b, c$ and included angle $C$?
Flashcard de estudo do deck ACT Mastery: English, Math, Reading & Science.