2 LINES lets you dimension the angle between two lines
that you select.

Cursor select the first line.

Cursor select the second line.

If the lines are parallel, an error messages appears.
Press <Enter> to reselect non-parallel lines.

The intersecting lines define four angles for 
dimensioning. To make it easier to identify the angle
you want to dimension, CADKEY draws temporary dashed
lines that extend to the limits of the screen along the 
selected lines.

Cursor select a position somewhere inside the angle you
want to dimension.

CADKEY prompts you to indicate which angle you want to 
measure, INNER or OUTER. If you choose INNER, CADKEY
dimensions the inner angle; if you choose OUTER, CADKEY
dimensions the outer angle.

Indicate the dimension text position using the cursor or
by typing in X, Y view coordinates. CADKEY draws the
dimension, arrows, and leader lines according to the
current settings in DETAIL, SET.

CADKEY displays the dimension and its leader lines. 
If you make a mistake, choose UNDO in the Break Area or
press (Alt)-(I). CADKEY deletes the dimension and leader
lines and you can indicate another dimension text 
position.
