Assume That the Cities Lie on the Same North-South Line $28.6 ^ { \circ }$

Multiple Choice

Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km.
-A wheel with a 32 -inch radius is marked at two points on the rim. The distance between the marks along the wheel is found to be 16 inches. What is the angle (to the nearest tenth of a degree) between the radii to the two marks?

A) $28.6 ^ { \circ }$
B) $26.6 ^ { \circ }$
C) $24.6 ^ { \circ }$
D) $30.6 ^ { \circ }$