Law of Sine and Cosine Formula
The formula of Law of sine and cosine is tabulated below:
Table of Law of Sine and Cosine Formula |
|
---|---|
Law of Sine and Cosine |
Formula |
Law of Sine |
a : b : c = sin A : sin B : sin C |
a / sin A = b / sin B = c / sin C |
|
Law of Cosine |
a2 = b2+ c2 – 2bc. cosA |
b2 = c2 + a2 – 2ca. cosB |
|
c2 = a2 + b2 – 2ab. cosC |
Related :
Law of Sine and Cosine
Law of Sine and Cosine are the basic laws or rules used in trigonometry that are used to give the relation between sides and angles of the triangle. In this article, we will learn about the Law of Sine (Sine Rule), Sine Rule Formula, Law of Cosine (Cosine Rule), Cosine Rule Formula, and others in detail.
Table of Content
- What is Law of Sines(Sine Rule)?
- What is Law of Cosine(Cosine Rule)?
- Law of Sine and Cosine Formula
- Examples Using Law of Sine and Cosine
- Practice Questions on Law of Sine and Cosines