Find the circumference $ C $ of a circle if radius $r = 4$.
Answer
$C = 8\pi$
Explanation
To find circumference $ C $ use formula:
$$ C = 2 \cdot r \cdot \pi $$After substituting $ r = 4 $ we have:
$$ C = 2 \cdot 4 \cdot \pi $$ $$ C = 8\pi $$This page was created using
Circle Calculator