Why do longitude lines converge while latitude lines do not?

The reason as to why longitude lines converge while latitude lines do not is;

Explanation:

That latitude lines are parallel to the equator, which means they cannot meet with the equator. They measure the distance from the equator to the north and south, they therefore do not converge. On the other hand, longitudes measure distance from the equator to the east and west, they meet at the north and south pole thereby converging.