Question

How will you express longitude on eastern hemisphere

Answer 1

The poles are the natural starting place for the graticule a spherical grid of latitude and longitude lines lines of longitude called meridians run in a North South direction from pole to pole longitude is the angular measurement of a place east more west of the prime meridian
longitude lines are a numerical way to show measure how far a location is east or west of a universal vertical line called the prime meridian this prime meridian line runs vertically North and South right over the British royal obervatory in Greenwich England from the north pole to the south pole