Please answer all the questions in neat

Complete the following assignment and show all process for full marks. 1. Solve for the unknown. [4 marks] 50 0 X 15 7 21 a ) b) 2. A person stands 300m from the base of a vertical cliff and measures an angle of 650 between the horizontal and the top of the cliff. Draw a labelled diagram and find the height of the cliff. [3 marks] 3. Find the unknown angle theta 0 (52.3 is the angle). [3 marks] 18.6 12.8 52.3 4. A helicopter hovers 500m above a long straight road. There is a truck to the left and right of the helicopter. The angles of depression of the two trucks from the helicopter are 60 and 20. How far apart are the two trucks? [4 marks]