Well if u ask me i think its prime meridian but im not sure
If you meant to write "180 degrees west and 180 degrees east," then they form a complete circle around the Earth, making them antipodal points. If you meant both points as 180 degrees west, they are the same location on the opposite side of the Earth.
The opposite side of the globe from the Prime Meridian is called the International Date Line. It is located 180 degrees away from the Prime Meridian and serves as the marker where each new day begins.
The zero degrees longitude line is called the Prime Meridian. When the Prime Meridian is combined with the meridian of 180 degrees longitude, the two meridians together form a circle that divides the Earth into the Eastern and Western Hemispheres.
Longitude is the angular measurement in degrees east or west of the Prime Meridian. The Prime Meridian is at zero degrees; going east, your longitude is in degrees and minutes east, while going west your longitude is measured in degrees and minutes west. A circle is 360 degrees, so the maximum longitude is 180 degrees either way. At the 180 degree line (called the "anti-meridian") the measurement is neither east nor west.
The line 180 degrees from the Prime Meridian is called the International Date Line, which serves as the boundary between one day and the next on the Earth's surface.
It's called the 180th meridian.
If you meant to write "180 degrees west and 180 degrees east," then they form a complete circle around the Earth, making them antipodal points. If you meant both points as 180 degrees west, they are the same location on the opposite side of the Earth.
There are 180-meridians in the eastern hemisphere. The meridian through Greenwich, England, also called the Prime Meridian, was set at zero degrees of longitude. The meridian on the opposite side of the earth is 180-degrees.
The line 180 degrees east and west of the prime meridian is called the International Date Line.
The greatest number of degrees anyone can be from the prime meridian is 180 degrees. This is because the prime meridian itself is located at 0 degrees longitude, and the maximum longitude value is 180 degrees both east and west. Therefore, any location can be a maximum of 180 degrees away from the prime meridian.
The Eastern Hemisphere.
The opposite side of the globe from the Prime Meridian is called the International Date Line. It is located 180 degrees away from the Prime Meridian and serves as the marker where each new day begins.
Longitude has a minimum of -180 (west of the prime meridian) and a maximum of 180 (east of the prime meridian). -180 and 180 are the same line, approached from opposite directions. 0 degrees of longitude runs through London, England and is called the "prime meridian."
The International Date Line
A meridian describes an arc connecting the north and south poles (a single line of longitude). As such, a meridian will be 180 degrees.
The zero degrees longitude line is called the Prime Meridian. When the Prime Meridian is combined with the meridian of 180 degrees longitude, the two meridians together form a circle that divides the Earth into the Eastern and Western Hemispheres.
The prime meridian is a line at 0 degrees longitude.