Assume That the Cities Lie on the Same North-South Line $17.0$

Multiple Choice

Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km.
-A pendulum of length $17.0$ inches swings $1 ^ { \circ } 6 ^ { \prime }$ to each side of its vertical position. What is the length (to the nearest hundredth of an inch) of the arc through which the end of the pendulum swings?

A) $0.45 \mathrm { in }$ .
B) $0.65$ in.
C) $0.55$ in.
D) $0.35$ in.