Step-by-step explanation:
this is totally simple. 
the formula for the area of a circle (as you can find with any search on the internet in seconds) :
A = pi×r²
r is the radius. 
and once you understand even the most basics of a circle, you know that the radius is half of the diameter.
so, in our case, r = 6/2 = 3 m
the area of the circle is therefore
pi×r² = pi×3² = pi×9 m²
 
        
                    
             
        
        
        
2.16 x 10 to the power of -4
        
             
        
        
        
Answer:
Step-by-step explanation:
Bsbsbdvd devebehehevergrbrhrhrhjddududyZhhdbdbsgssgsggsUhfhd