Find the circumference $ C $ of a circle if area $A = \frac{ 7693 }{ 2500 }$.
Answer
$C = 1.9794\pi$
Explanation
STEP 1: find radius $ r $
To find radius $ r $ use formula:
After substituting $ A = \frac{ 7693 }{ 2500 } $ we have:
$$ A = r^2 \cdot \pi $$ $$ r^2 \cdot \pi = \frac{ 7693 }{ 2500 } $$ $$ r = \sqrt{ \frac{ \frac{ 7693 }{ 2500 } }{\pi} } $$ $$ r \approx 0.9897 $$STEP 2: find circumference $ C $
To find circumference $ C $ use formula:
$$ C = 2 \cdot r \cdot \pi $$After substituting $ r = 0.9897 $ we have:
$$ C = 2 \cdot 0.9897 \cdot \pi $$ $$ C \approx 1.9794\pi $$This page was created using
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