Change The Size And Shape Of Objects - Autodesk 057B1-41A111-1001 - AutoCAD LT 2010 User Manual

By default, when you mirror text, hatches, attributes, and attribute definitions,
they are not reversed or turned upside down in the mirror image. The text
has the same alignment and justification as before the object was mirrored.
If you do want text to be reversed, set the MIRRTEXT system variable to 1.
MIRRTEXT affects text that is created with the TEXT, ATTDEF, or MTEXT
commands; attribute definitions; and variable attributes. Text and constant
attributes that are part of an inserted block are reversed when the block is
mirrored regardless of the value of MIRRTEXT.
MIRRHATCH affects hatch objects created with the GRADIENT or HATCH
commands. Use the MIRRHATCH system variable control whether hatch
pattern direction is mirrored or retained.

Change the Size and Shape of Objects

There are several methods for adjusting the lengths of existing objects relative
to other objects, both symmetrically and asymmetrically.
Trim or Extend Objects
You can shorten or lengthen objects to meet the edges of other objects.
Select and Modify Objects | 227