Answer:
Exact form is 
the decimal form is 5
Step-by-step explanation:
 
        
             
        
        
        
Hiyoigbv jvgkk uoiu jvduj
        
             
        
        
        
Just draw a graph and plot them on the graph then count how many squares (in short) there is between them.
        
             
        
        
        
The area of the square is 100ft
        
                    
             
        
        
        
The answer is Graph, I hope it helps:)