Question

Use the arc length formula and the given information to find s. Show your work for full credit.
r = 20 ft θ = 19° s = ?

Answer 1

Do you know the arc length formula?

Answer 2

\(\bf \textit{arc's length}=s=\cfrac{r\theta \pi}{180}\)

Answer 3

okay but wouldn't I have to change the 19 degrees to a different number? how would I do that?

Answer 4

Yes. We use radians instead of degrees. You convert to radians from degrees.