Define latitudes and longitudes of the earth?
The imaginary lines that run from East to West are called Parallels or Lines of Latitude. A geographic coordinate that describes the north-south position of a place on the Earth's surface is known as latitude. The angle of latitude varies from 0° at the Equator to 90° at the poles. Parallels, or lines of constant latitude, travel east-west as circles parallel to the equator.
The imaginary lines that run North to South from the poles are called Meridians or the lines of Longitude. Longitude is a geographic coordinate that describes the east-west location of a location on the Earth's surface or a celestial body's surface. It is an angular measurement represented by the Greek letter lambda and generally represented in degrees. Meridians are lines that link locations of the same longitude.