# Side length of a triangle

This calculator computes side length of a triangle given two sides and angle between them (law of cosines)

This content is licensed under Creative Commons Attribution/Share-Alike License 3.0 (Unported). That means you may freely redistribute or modify this content under the same license conditions and must attribute the original author by placing a hyperlink from your site to this work https://planetcalc.com/909/. Also, please do not modify any references to the original work (if any) contained in this content.

After I've written Pythagorean theorem calculator, I've recalled that the Pythagorean theorem is a special case of a more general theorem relating the lengths of sides in any triangle, the law of cosines

Well, there are a lot of things you can find about triangles. I've already used this law for finding Triangle angles for given triangle sides, now I use it to find the length of the side opposite the angle.

#### Similar calculators

**

**PLANETCALC, Side length of a triangle

## Comments