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Jon and Becky measured the circle-shaped part of a sun they drew on the sidewalk.


The diameter of the circle is 64 centimeters. What is the approximate area of the circle? Use = 3.14

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JonHenderson55


Answer:  The approximate area of the circle is:  3,629.84 cm² .
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Area of a circle, "A" :  A = π r² ;

  in which: A = Area of circle ;
               π ≈ 3.14 ; 
               r = radius; 

radius of a circle, "r" = d / 2  ;  in which:  "d = diameter" ;

Given "d = 64 cm " ; 
         
                       r = d / 2 = 64 cm / 2 = 32 cm ;
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   So;    A = π r²  ;
 
            A ≈ (3.14) (32 cm)² ;
 
            A ≈ (3.14) (1156 cm²) ;
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            A  ≈  3,629 .84 cm²  .
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