Question

On a circle of radius 10 feet, what angle would subtend an arc of length 1 feet?

Answer 1

$\bf s=\cfrac{r\theta \pi }{180}\quad \begin{cases} r=radius\\ \theta=\textit{angle in degrees}\\ s=\textit{arc's length}\\ --------------\\ r=10\\ s=1 \end{cases} \\\\\\ 1=\cfrac{10\cdot \theta\cdot \pi }{180}\impliedby \textit{solve for }\theta$