90 degrees west longitude
The line of longitude for a place that is halfway between the prime meridian and the 80th line of longitude and west of the prime meridian would be -40 degrees longitude. The prime meridian is at 0 degrees, and halfway between 0 and 80 is 40 degrees. Since the location is west of the prime meridian, the longitude would be measured as negative.
latitude
90 degrees
90 degrees west
90° west longitude
90 degrees west
The line 90 degrees west longitude, which includes the cities of New Orleans LA and Memphis TN.
90 degrees west
Nominally 180° of longitude, or halfway around the Earth.
The longitude of such a place is 90° West. On any randomly chosen map or globe, there may or may not be a line printed to show that longitude.
90 degrees west
The halfway point between the Prime Meridian (0°) and the 180° line of longitude is the 90° line of longitude, also known as the International Date Line. This line is located in the Pacific Ocean and marks where each new day begins.