Before revision: When using common projections such as the transverse Mercator projection, these are distances projected on an imaginary surface similar to a bent sheet of paper, and are not the same as distances measured on the curved surface of the Earth.UTM-zones Easting and northing coordinates are commonly measured in metres from the axes of some horizontal datum.
After revision: When using common projections such as the transverse Mercator projection, these are distances projected on an imaginary surface similar to a bent sheet of paper, and are not the same as distances measured on the curved measure of the earth Easting and northing coordinates are commonly measured in metres from the axes of some horizontal datum.