#5 is number b 
#6 is number b as well. 
these are the answers because the opposite side can be found when u put an arrow straight up from the angle. as you can see , if c had an angle , the opposite would be line segment AB
        
             
        
        
        
This is called a direct current > ———
        
             
        
        
        
Answer:
I'm sorry to hear that. Keep doing what you love <3 , and I wish you a goodluck in life.
Explanation: