Sine Rule

The Sine Rule helps find unknown sides or angles in a triangle, especially when it isn't right-angled. It states that the ratio of a side length to the sine of its opposite angle is consistent across all three sides and angles. Mathematically, it's written as (a/sin A) = (b/sin B) = (c/sin C). This means if you know two angles and one side, or two sides and an angle not between them, you can find the missing parts by setting up proportions using sine. It’s a useful tool for solving oblique triangles where right-angle methods don’t apply.