The Rotate Object dialog box enables you to specify an angle, with which you want to rotate the selected object(s).
You may enter the angle value, or change it by using the Up and Down arrow buttons. While you are making changes, a new position of the object(s) is displayed as an outlined box.
Rotation is performed counterclockwise around the selected rotation center. By default this center is set exactly to the center of the selected object(s). You can change the center before opening Rotate Object dialog Box.