Take a look at this instructional video and learn how to use the rotate tool in Google SketchUp. When you pick the rotate tool, the icon orients itself to any surface you hover over. Click once to set the rotation and move away to set a rotation base. This is the controlling arm you will use to rotate your object. This tutorial covers how the rotate tool works, examples of the rotate tool in action, and how to lock or define the orientation of the tool.