Question

What is the radius of a circle with a circumference of 196pi m?

Answer 1

`\text{circumference of a circle=2}\pi r`
`\begin{gathered} 196\pi=2\pi r \\ \text{divide both sides by 2}\pi \\ (196\pi)/(2\pi)=(2\pi r)/(2\pi) \\ r=98\text{ m} \end{gathered}`