Find the diameter $ d $ of a circle if circumference $C = 4$.
Answer
$d = 1.2732$
Explanation
STEP 1: find radius $ r $
To find radius $ r $ use formula:
$$ C = 2 \cdot r \cdot \pi $$After substituting $ C = 4 $ we have:
$$ 4 = 2 \cdot r \cdot \pi $$ $$ r = \dfrac{ 4 }{ 2 \pi } $$ $$ r \approx 0.6366 $$STEP 2: find diameter $ d $
To find diameter $ d $ use formula:
$$ d = 2 \cdot r $$After substituting $ r = 0.6366 $ we have:
$$ d = 2 \cdot 0.6366 $$ $$ d \approx 1.2732 $$This page was created using
Circle Calculator