The Prime or Greenwich Meridian
The Prime Meridian, located at 0 degrees longitude, serves as the reference point from which all other longitudes are measured. Longitudes to the east are designated as positive values, while longitudes to the west are designated as negative values.
180 to the east and 180 to the west
When geographic coordinates are to be processed mechanically/mathematically ... likewith computers ... they're written as plus and minus, instead of north/south/east/west.Latitude:positive . . . northnegative . . . southLongitude:positive . . . eastnegative . . . west
Longitudes mark the distance east or west of the Prime Meridian, which is 0 degrees longitude. They help determine locations on the Earth's surface and are measured in degrees from 0 to 180 degrees east and west.
That range of longitudes includes parts of Russia, Mongolia, China, Bhutan, India, Myanmar, Bangladesh, Indonesia, and Antarctica, but none of the fifty USA.
tell me
The Prime Meridian, located at 0 degrees longitude, serves as the reference point from which all other longitudes are measured. Longitudes to the east are designated as positive values, while longitudes to the west are designated as negative values.
180 to the east and 180 to the west
When geographic coordinates are to be processed mechanically/mathematically ... likewith computers ... they're written as plus and minus, instead of north/south/east/west.Latitude:positive . . . northnegative . . . southLongitude:positive . . . eastnegative . . . west
Longitudes mark the distance east or west of the Prime Meridian, which is 0 degrees longitude. They help determine locations on the Earth's surface and are measured in degrees from 0 to 180 degrees east and west.
Latitudes. Longitudes run north to south and measure east-west distance or location.
Neither, they are East. On computer systems longitudes West are represented by being given as negative, so they would be represented by being positive.
That range of longitudes includes parts of Russia, Mongolia, China, Bhutan, India, Myanmar, Bangladesh, Indonesia, and Antarctica, but none of the fifty USA.
No, Antarctica is not touched by both the 30 degrees west and 30 degrees east longitudes simultaneously. As Antarctica is located near the South Pole, the 30 degrees west and 30 degrees east longitudes would be far apart from each other when reaching that region.
That's going to depend on how you're holding your map or globe. -- If the north pole is at the top, then meridians to the left of the Prime Meridian mark west longitudes. -- If the south pole is at the top, then meridians to the left of the Prime one mark east longitudes. -- If the north and south poles are toward the sides of the map, then the Prime Meridian is a horizontal line between them, and there is nothing on Earth to the left or right of it.
If you are changing longitudes while moving eastward, you are moving in an easterly direction. If you are changing longitudes while moving westward, you are moving in a westerly direction.
-- The ends of each meridian of longitude are the north and south poles. -- Longitude is the coordinate that describes the east/west position of a point. West India and East India must have different longitudes.