It starts becoming bigger :)
        
             
        
        
        
I think A since working backwards and looking for a pattern wouldn't help, maybe C but im not sure
        
                    
             
        
        
        
COB and COD complementary 
AOB and BOC adjacent angle that is neither comp. or supp.
AOC and COD supplementary
AOE and COD vertical
        
             
        
        
        
Answer:
No question?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
r=4.5 I hope this helped!
Step-by-step explanation: