Answer: (A) 14π
\[\frac{2\pi r}{\pi r^2}=\frac{2}{r}=\frac27\Rightarrow r=7\]
Circumference \(=2\pi\times7=14\pi\).
Answer: (A) 14π
\[\frac{2\pi r}{\pi r^2}=\frac{2}{r}=\frac27\Rightarrow r=7\]
Circumference \(=2\pi\times7=14\pi\).
Log in or create a free account to answer this question.