2 ENTS allows you to calculate the minimum distance 
between two selected geometric entities. Select the 
first curve entity by positioning the cursor and pressing
the space bar or cursor button. Select the second curve 
in the same manner.

To display the next line of information, press <Enter>.
Redraw to clear the screen of the temporary lines used in
each of the calculations. If desired, select two new
entities for distance verification. To choose a different
option for distance verification from the distance menu,
choose the BACK-UP option when you are at the Position
menu.
