180 to the east and 180 to the west
The Prime or Greenwich Meridian
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.
The imaginary line is called the Prime 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.
The longitude of every point on Earth, from the Prime Meridian out to halfway around the world in the westerly direction is labeled "west longitude". The longitude of every point on Earth from the Prime Meridian out to halfway around the world in the easterly direction is labeled "east longitude".
The Prime or Greenwich Meridian
By definition and international agreement, the Prime Meridian is Zero longitude.All longitudes on earth are measured east and west of the Prime Meridian.
Botswana occupies the whole range of longitudes from 20° to 29.3° East of the Prime meridian.
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.
The imaginary line is called the Prime 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.
The longitude of every point on Earth, from the Prime Meridian out to halfway around the world in the westerly direction is labeled "west longitude". The longitude of every point on Earth from the Prime Meridian out to halfway around the world in the easterly direction is labeled "east longitude".
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
Longitude measures the distance in degrees east and west of the Prime Meridian, which is the starting point for calculating longitudes. It ranges from 0° at the Prime Meridian to 180° east and 180° west from the Prime Meridian, meeting at the International Date Line in the Pacific Ocean.
Distance East or West of the prime meridian is measured in degrees of longitude.
A city's location on the Earth with respect to the prime meridian is given by the city's longitude. The prime meridian, which runs through Greenwich, London, serves as the reference point for measuring longitude, with cities located east being given positive longitudes and those located west having negative longitudes.
Prime meridian. It passes through Greenwich, England and is the starting point for East and West longitudes.