If S Denotes the Length of the Arc of a Circle

Multiple Choice

If s denotes the length of the arc of a circle of radius r subtended by a central angle θ, find the missing quantity.
- $\mathrm { r } = 8.8$ inches, $\theta = 60 ^ { \circ } , \mathrm { s } =$ ?

A) $9.5 \mathrm { in }$ .
B) $9.2$ in.
C) $9.3 \mathrm { in. }$
D) $9.4 \mathrm { in }$ .