Length = 7.679 units
Explanations:The length of an arc is given by the formula:
[tex]\text{Length = }\frac{\theta}{360}\times\text{ 2}\pi r[/tex][tex]\begin{gathered} \text{The radius, r = 4} \\ \theta=110^0 \\ \pi=\text{ 3.14159} \end{gathered}[/tex]Substitute θ = 110, and r = 4 into the given formula:
[tex]\begin{gathered} \text{Length = }\frac{110}{360}\times2\times3.14159\times4 \\ \text{Length = }7.679 \end{gathered}[/tex]Length = 7.679 units