Find the diameter $ d $ of a circle if circumference $C = 19$.
Answer
$d = 6.0479$
Explanation
STEP 1: find radius $ r $
To find radius $ r $ use formula:
$$ C = 2 \cdot r \cdot \pi $$After substituting $ C = 19 $ we have:
$$ 19 = 2 \cdot r \cdot \pi $$ $$ r = \dfrac{ 19 }{ 2 \pi } $$ $$ r \approx 3.0239 $$STEP 2: find diameter $ d $
To find diameter $ d $ use formula:
$$ d = 2 \cdot r $$After substituting $ r = 3.0239 $ we have:
$$ d = 2 \cdot 3.0239 $$ $$ d \approx 6.0479 $$This page was created using
Circle Calculator