Find the radius $ r $ of a circle if circumference $C = \frac{ 38 }{ 5 }$.
Answer
$r = 1.2096$
Explanation
To find radius $ r $ use formula:
$$ C = 2 \cdot r \cdot \pi $$After substituting $ C = \frac{ 38 }{ 5 } $ we have:
$$ \frac{ 38 }{ 5 } = 2 \cdot r \cdot \pi $$ $$ r = \dfrac{ \frac{ 38 }{ 5 } }{ 2 \pi } $$ $$ r \approx 1.2096 $$This page was created using
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