The angles are labelled with capital letters. The opposite sides are labelled with lower case letters. Notice that an angle and its opposite side are the same letter. The sine rule is: \(\frac{a} ...

Trigonometric Law of Sine\Cosine Side 2 measurement nCos(adj, hyp) Trigonometric Inverse Right Triangle The angle of θ nCot(adj, opp) Trigonometric Inverse Right Triangle The angle of θ nCsc(hyp, opp) ...

An inverse function takes the output and ... The only equation that contains both \(o\) and \(h\) is the sine (sin) ratio. Practise finding angles in right-angled triangles with this quiz.