Number of Paths from Point to Point In a certain city, there are seven streets going north-south and four
streets going east-west. How many street paths start
at the southwest corner of the city, end at the northeast
corner of the city, and have the shortest possible length?
(Mathematics Teacher calendar problem)

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.