Answer:
A.non at all so, please choose the right answer
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
According to congruent chords and arcs theorem, if  then
 then  .
.
This means that  
 
Thus:
 (full circle = 360°)
 (full circle = 360°)



Plug in the values into the equation 


Add like terms

Subtract 36 on both sides 


Divide both sides by 12

 
        
             
        
        
        
Answer:
2√3
Step by step Explanation:

 
        
             
        
        
        
It has to be true because