Answer:
The arc length is \(6.63\ ft\)
Step-by-step explanation:
we know that
The formula to calculate the arc length is equal to
\(s=r\theta\)
where
r is the radius
\(\theta\) is the angle measured in radians
In this problem we have
\(r = 20\ ft\)
\(\theta=19\°\)
Convert degrees to radians
by proportion
\(\frac{\pi}{180}\frac{radians}{degrees} =\frac{x}{19}\frac{radians}{degrees}\\ \\x=19\pi /180\)
Substitute in the formula
\(s=20(19\pi /180)=6.63\ ft\)
