Answer:
pi4
Step-by-step explanation:
Formula is piD, diamter is 4, so pi4 which equals 12.56
BRAINYLIST
 
        
             
        
        
        
Answer:
2988
Step-by-step explanation:
 
        
             
        
        
        
Answer:
I. -9 + y = 18
Step-by-step explanation:
Double-check to see if I was correct
 
        
             
        
        
        
In order to name the coordinates, you read the X axis first and then the Y axis. So A would be (-4, 4). B would be (-4, 6). C would be (2, 4). 
They are not congruent because each angle is a different measure. 
Hope this helped! :)