11. We have our A (adjacent), and we want to find our O (opposite), both in respect to the given angle of 50<span>°. Therefore, we will use Tan, (Toa, O and A).
20 * Tan(50) 23.6 to 1DP
12. Similar concept. In respect to our given angle of 34</span><span>°, we have our H (hypotenuse; our longest side, opposite the right angle), and we want to find our O (opposite). Therefore we use Sin (Soh, O and H).
