Refer to the given figures. Find the value of x so that by the indicated theorem. Choose your answer.
 
                        |     | 
 | 
                                    2
                                
                            
                                  7
                                
        					
                                   14
                                
                            
                                   23
                                
        					
                                   None of the choices
                                
        					
                            	Answer: 
                            	
                                	7
                                
                           	
                       	|     | 
 | 
                                    17
                                
                            
                                 15
                                
        					
                                   7
                                
                            
                                  1
                                
        					
                                   None of the choices
                                
        					
                            	Answer: 
                            	
                                	1
                                
                           	
                       	|     | 
 | 
                                   3
                                
                            
                                 6
                                
        					
                                   13
                                
                            
                                  17
                                
        					
                                   None of the choices
                                
        					
                            	Answer: 
                            	
                                	3
                                
                           	
                       	