text{Area of a triangle} = \frac{1}{2} ab \sin{C}\) To calculate the area of any triangle the lengths of two sides and the angle in between are required. Rearrange the equation to make \(\sin{C}\) ...

For a right-angled triangle, follow these steps to calculate an angle \(Ɵ\), when two sides are given: Note that scientific calculators need to be used for trigonometry and should be in degrees mode.