Question

Length of an arc of a sector of a circle with radius r and angle with degree measure $\theta$ is $\frac{\theta }{360}\times m\pi r$
$m$ is

Answer 1

The whole circle of ${360}^0$ makes arc length of $2\pi r$
Thus angle of $\theta$ will make a length = $\frac{\theta }{360}\times 2\pi r$