coordinate system - Changing layer extent to decimal degrees? - Geographic Information Systems Stack Exchange
A Quick Guide to Using UTM Coordinates
SOLVED: The following table gives X and Y coordinates (in meters) for points in a parcel. Calculate the area (in square meter and hectares) enclosed by these points using the coordinate method
Converting and Displaying Coordinates in ArcGIS 10
Survey Coordinates
Convert Wisconsin Transverse Mercator State Plane Coordinates in NAD27 to & from UTM or lat/long