Verified Answer :

The answer is:  20 \(\pi\)  m²  .
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Explanation:
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Formula for "S.A." (Surface area) of a cylinder

S.A. 
= 2 \(\pi\) r² + 2\(\pi\) r h ;
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in which "r" = length of radius of circle at the end; and "h" = "height" ; 
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Given: r = 2 m ; and h = 3 m ; 
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 We can "plug in" these given values; and solve for the "surface area" in terms of
"\(\pi\)" .
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S.A. = 2 \(\pi\) r² + 2\(\pi\) r h ;
    
         = 2 \(\pi\) (2)²   + 2 \(\pi\) (2)   (3)  ;
         
         =  2 \(\pi\)
(4)   + 2 \(\pi\) * (6) ;
   
         =  (8 \(\pi\))   +     (12) \(\pi\) 

         =    20 \(\pi\)   m²  .
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