The answer is: " 17.35 " .
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 → The circumference of the circle is: " 17.35 units " .
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The area, "A", of a circle:
A =  * r² ;
 * r² ;
Note:  .
 .
The area of the circumference, "C", of a circle:
C = 2  r .
 r .
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Given: 
 A = 24 ;
Use the formula for the area, "A" of a circle, to find the radius, "r" .
Then, plug the value obtained for "r" into the formula for the circumference, "C" , of a circle:
 C = 2 r l
 r l
To solve for the circumference, "C", of the circle.
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 A =  ;
 ;
24 = 3.14 * r² ;
↔ 3.14 * r² = 24 ;
Divide each side of the equation by "(3.14)" ;
 [3.14 * r²] / 3.14 = (24) / (3.14) ;
to get:
→ r² = 7.64331210191 ;
Take the positive square root of each side of the equation; 
 to isolate "r" on one side of the equation; & to solve for the radius, "r" ;
 → ⁺√(r²) = ⁺√(7.64331210191) ;
 to get:
 → r = 2.76281034802 ;
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Now, plug this "obtained value" for the radius, "r" into the equation for the formula for the circumference, "C" of a circle:
 → C = 2  * r ;
 * r ;
to solve for the circumference, "C", of the circle:
 →  C = 2 * (3.14) * (2.76281034802) ;
  =  (6.28) * (2.76281034802) ;
 = 17.3504489856 ;
 → round to: " 17.35 units" .
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The answer is: " 17.35 " .
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 → The circumference of the circle is:  " 17.35 units " .
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