The lines running between the two poles are called meridians. These meridians are used in geographic coordinate systems to measure longitude and determine the angular distance east or west of the Prime Meridian (0 degrees longitude).
If a place is located between two latitude or longitude lines, you can determine its approximate coordinates by averaging the values of the two lines. For latitude, you would take the average of the northern and southern lines, while for longitude, you would average the eastern and western lines. This method provides a rough central point that can be useful for navigation or mapping. Additionally, you can use geographic tools or GPS devices for more precise locations.
The Prime Meridian and the Internation Date Line
Two of them.
They cross at the two poles.
equator and hemisphere
The two lines of longitude that share the same line east and west are the Prime Meridian (0° longitude) and the International Date Line (180° longitude). The Prime Meridian runs through Greenwich, England, while the International Date Line is located roughly along the 180° longitude line in the Pacific Ocean. These lines are opposite each other on the globe, marking the division between the Eastern and Western Hemispheres.
Latitude and longitude
Yes.
Any two lines of longitude you choose get closer togetheras they proceed from the equator to the poles.
Every point on Earth has a latitude and a longitude. No two points have the same set of two numbers.
The two tropics are lines of latitude at 23°26′13.0″ North and South of the Equator and they intersect all lines of longitude.