You're on the right track, but don't get hung up on 'lines'. Longitude is the angle
from the Prime Meridian east or west to the place of interest.
equator , prime merdian
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prime merdian
Lines of longitude measure how far something is east or west of the Prime Meridian.
That's the "Prime Meridian".
Mexico is west of the Prime Meridian (0° of Longitude).
Prime Meridian.
through the Prime Meridian.
It is latitude lines. this is all from my geography class. hehehe
lines of longitude are lines drawn north and south and measure east and west a famous line of longitude is the Prime meridian
Longitude measures the distance east and west of the prime meridian.
Longitude lines measure how far (in degrees) you are East or West of the Prime Meridian (which is a longitude line that runs through Greenwich, England and is designated as 0° longitude).