Answer:
28.27cm²
Step-by-step explanation:
formula:
A=πr²
d = 2r
Solving for A
A=1/4π d² = 1/4 · π · 6² ≈ 28.27433cm²
rounded: 28.27cm²
hope this helped! 
 
        
                    
             
        
        
        
Due to the order of operations the correct answer is 6+2*5=16
        
                    
             
        
        
        
Answer:
9/c or c/9
Step-by-step explanation:
 
        
             
        
        
        
Answer:
a= (π/4) + (kπ/2)
Step-by-step explanation:
I have attached the explanation above. hopefully this will help