By looking at the graph, we can see that the shape is a quarter of a circle. 
The area of a circle is:

So, this "quarter circle" is:

R is the radius (the diagram shows the radius is 8), so we can now find the area:

The area is 8π.
 
        
                    
             
        
        
        
Answer:
The right answer is C
Step-by-step explanation:
 
        
             
        
        
        
Associative property of addition
        
             
        
        
        
Answer:
672,800
Step-by-step explanation:
672,800 672800