ROTATE command
Rotates entities about a specified point.
                Icon: 
Alias: RO
Description
Rotate entities about a specified point at a specified rotation angle, or by an angle referenced to a base angle.
Note: A positive number rotates the entities
                    counter-clockwise. A negative number rotates the entities clockwise. The
                    starting angle is 0 degrees, and the rotation angle is measured from the
                    positive x axis.
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Options within the command
- Base angle
 - Specifies a new base angle, which is a starting angle other than 0. This option lets you define a different angle as the starting point.
 
- Copy
 - Rotates a copy of the source entity, instead of rotating the source itself.