Question

Hi, good morning, can you help me to solve this exercise please!!

Answer 1

The formals is not correct

Answer 2

Given:

The radius of circle is r = 13 ft.

The arc length is 19 pi feet.

Step-by-step explanation:

The formula for the arc length is,

`s=r\theta`

Here, angle is in radians.

Substitute the values in the formula to determine the measure of angle.

`\begin{gathered} 19\pi=13\cdot\theta \\ \theta=(19\pi)/(13) \end{gathered}`

So angle in radians is,

`(19\pi)/(13)\text{ radians}`