I think the answer is A.CMIIW
 
        
                    
             
        
        
        
Answer:
A 
Step-by-step explanation:
When you rotate the shape it will be the same as it was before .
 
        
                    
             
        
        
        
Constants are anything that is not a variable. A variable is a letter. So think about it... What would be the constants? What is not a letter? TIP: Make sure you include - sign!_
        
             
        
        
        
Answer:
m∠1 = 67
Step-by-step explanation: