Question

find radius of a circle whose arclength is 57.1 meters and central angle of 1.46 radians

Answer 1

hint:  $\bf s=r\theta\implies \cfrac{s}{\theta}=r\qquad \begin{cases} s=\textit{arc's length}\\ \theta=\textit{central angle, in radians}\\ r=radius \end{cases}$