Answer:
7/18
Step-by-step explanation:
21 out of 54 = 21/54 = 7/18
 
        
                    
             
        
        
        
Answer:
72178.4777
Step-by-step explanation:
 
        
                    
             
        
        
        
Area of the shaded region = Area <span>of a square - Area of a circle
</span>
Side of a square = 2r
Area of a square = (2r)² = 4r²
Area of a circle = πr²
Area of the shaded region = 4r² - πr² = <span>r²(4-π)</span>
        
             
        
        
        
Answer:
i pray you get it right lol
Step-by-step explanation:
just ask a teacher