Question

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

Answer 1

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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