Answer:
When you have an imaginary number in the denominator multiply the numerator and the denominator by the conjugate of the denominator.
 
        
             
        
        
        
To find the circumference, you multiply the diameter by pi (3.14).
94 * 3.14 = 295.16
Hope this helps!
        
             
        
        
        
Answer:
Step-by-step explanation:
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