Click Format menu Units. At the command prompt,
enter units.
In the Drawing Units dialog box, set
the unit values for your drawing.
As you change unit settings, you can
see examples under Sample Output.
Under Length, select a unit type and
level of precision. This determines the display style for linear
drawing units.
Under Drawing Units for DesignCenter
Blocks, select the unit that you want used to scale blocks, images,
or other content inserted into the drawing. If you do not want inserted
content to be scaled, select Unitless.
Under Angle, select an angle type and
precision. This determines the display style for angular drawing
units. The default starting angle, 0 degrees, is toward 3 o'clock
(or east).
To specify an angle direction, click
Direction, and then select the base angle in the Direction Control
dialog box. The angle direction controls the point from which angles
are measured and the direction in which they are measured. If you
select Other, you can enter an angle, or click Angle to specify
an angle using your pointing device. The default positive angle measurement
is counterclockwise.