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To find the x,y,z-coordinates for a point on an entity, such as the endpoint of a line, select an appropriate entity snap (such as Endpoint) before selecting the entity. If you have no entity snaps set, the x,y-coordinates of the point you specified is displayed, with the z-coordinate equal to the current elevation.
If the command bar is activated, the x,y,z-coordinates for the point you selected display in the command bar.
If the command bar is not activated, the Prompt History window displays, showing the x,y,z-coordinates for the point you selected.