AutoCAD - Lengthen Command

LENGTHEN

                This command is used to change length or angle of line or circle on the basis of DELTA, PERCENTAGE, TOTAL & DYNAMIC MODE.

• Can be used as alternate to TRIM/EXTEND with specific values.
• Does not affect closed objects.
• After selecting the object AutoCAD shows the current length and angle

Option Available

• DELTA: Specify distance to be added or subtracted from original object
• PERCENTAGE: Specify percentage by which one wants to make charges in the object.
• TOTAL: Specify the total distance or angle required.
• DYNAMIC: Drag the courser as per required distance or angle

refer the following video for details.

AutoCAD - Rotate Command

ROTATE :
Rotate command is used to rotate i.e. change angle of single/multiple objects with known angle or with the reference object.
Command line shortcut : RO

More Options :

1. rotate with specific angle

2. rotate with unknown angle i.e with reference.

3. Copy original object.

Find the video tutorial explaining all options in rotate command