(x-10)2 + (1 - 5)2 = 28
Radius:
Circumference:
       
      
                
     
    
    
    
    
    2 answers:
            
              
              
                
                
General equation
Now
r²=28
So
Circumference
 
                                
             
                    
              
              
                
                
<h3>
Answer:</h3>
1) Radius: 2√7
2) Center: (10, 5)
3) Circumference: 33.25
<h3>
Explanation:</h3>
Circle formulae:
where (h, k) is the center coordinates, r is radius
Rewrite the equation into standard form:
- (x-(10))² + (x - (5))² = (√28)²
Identify following of the circle:
- h = 10, k = 5, radius = √28 = 2√7
In order to find the Circumference of circle:
- Use the formula: 2π(radius)
radius: 2√7
- Circumference: 2π(2√7) = (4√7)π = 33.2475 = 33.25
 
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