Solve the Problem $110 ^ { \circ }$ By Marking an Arc on the Perimeter of a Disk

Multiple Choice

Solve the problem.
-You want to make an angle measuring $110 ^ { \circ }$ by marking an arc on the perimeter of a disk with a diameter of 10 inches and drawing lines from the ends of the arc to the disk's center. To the nearest tenth of an inch, how long should the arc be?

A) $4.8 \mathrm { in }$ .
B) $19.2 \mathrm { in }$ .
C) $38.4 \mathrm { in }$ .
D) $9.6 \mathrm { in }$ .