Locate a position that is a relative distance from a known location which you select.
Coordinate System
Choose Cartesian or Polar. Your choice determines which World dialog box is displayed.

X, Y, Z Value
The distance along the axis from a location you will later select to the new position you are locating.

Radius
The linear distance along the defined angle from the point you will later select to the new position you are locating.
Angle
The angle located in standard position with vertex at a point you select later, along whose terminal side will be the new position you are locating at a distance equal to the radius.
When the relative coordinate values are entered and you click OK, an abbreviated version of the Select Point menu will be displayed (minus the Relative command). Use the commands of this menu to select the known location from which the relative measurements will be made to the new location.
Procedure: Use the Relative command to choose a new location.