Trigonometric ratios are defined in terms of the sides of a right-angled triangle. The sides are labelled as Opposite (Opp), Adjacent (Adj) and Hypotenuse (Hyp). The hypotenuse is the longest side of ...

is it larger than a right angle (angle \(C\)) or an acute angle (angle \(C’\))? The ambiguous case arises as a result of triangle \(BCC’\) being an isosceles triangle, meaning the angle \(C+C’ = ...