Question

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

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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