Calculate the length AB. Give the answer to one decimal place. Label the sides of the triangle \(o\), \(a\) and \(h\). Next choose the correct ratio from \(s^o_h~c^a_h~t^o_a\). The length \(h\) is ...

We can use trigonometric identities to calculate angles as well as the lengths of sides. In order to calculate angles we must know two sides of the right-angled triangle. Look at this triangle ...

to calculate unknown values based on known values. For example, if you know the length of one side and the angle opposite to it in a right triangle, you can use trigonometry to find the length of ...