Practice Questions
| 1. | Find the value as directed Difficulty: medium | 
                                    
                                    4
                                 | 
| 2. | Find the value of 'x', 'y' and 'z' Difficulty: hard | 
                                    
                                    4
                                 | 
| 3. | Find the unknown angle Difficulty: medium | 
                                    
                                    3
                                 |