Assume That the Cities Lie on the Same North-South Line $30 ^ { \circ } \mathrm { N }$

Multiple Choice

Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km.
-Find the latitude of Winnipeg, Canada if Winnipeg and Austin, TX, $30 ^ { \circ } \mathrm { N }$ , are $2234 \mathrm {~km}$ apart.

A) $50 ^ { \circ } \mathrm { N }$
B) $20 ^ { \circ } \mathrm { N }$
C) $70 ^ { \circ } \mathrm { N }$
D) $60 ^ { \circ } \mathrm { N }$