The Law of Cosines is a mathematical formula that connects the sides of any triangle to its angles. Think of it as a super-powered version of the Pythagorean theorem that works on all triangles, not just right triangles.
That’s where a Law of Cosines calculator comes in. It’s a tool that helps you quickly figure out missing side lengths or angles when you’re working with triangles.
You can use the Law of Cosines when you know two sides of a triangle and the angle between them (that’s called “SAS”), or when you know the length of all three sides (“SSS”). This calculator is all you need.