Answer:
srry
Step-by-step explanation:
 
        
             
        
        
        
Answer:
They are 5 I think 
Step-by-step explanation:
It should be correct
 
        
             
        
        
        
I believe you have to do a cross product formula. 
2174/x = 28.19/100
        
                    
             
        
        
        
Answer:
49,850.64
Step-by-step explanation:
To find the area of a circle, you must use the formula pi r ^2 (pi r squared).
In this case, we are using 3.14 for pi, so we can add that into the formula.
3.1r^2
We also know the radius, so we can add that in too.
3.14 x 126 ^2
Now solve.
126^2 = 15,876
15,876 x 3.14 = 49,850.64
49,850.64 is the answer.
Hope this helped!