If you're using SketchUp Free for your 3D modeling and design projects, you may need to rotate objects to achieve the desired look and layout. Here's a simple guide on how to do it:

1. Select the Object: Open your SketchUp Free project and select the object you want to rotate by clicking on it.

2. Access the Rotate Tool: Once the object is selected, go to the toolbar and click on the 'Rotate' tool. It's represented by a circular arrow icon.

3. Set the Rotation Axis: Click on a point in your 3D model where you want to set the rotation axis. This will be the point around which the object will rotate.

4. Start Rotating: Click on the object once to set the rotation axis, and then click again to start rotating the object. You can also type in the specific angle of rotation if needed.

5. Complete the Rotation: Once you've achieved the desired rotation, click to set the object in place.

6. Fine-tune the Rotation: If you need to make further adjustments, you can use the 'Rotate' tool again to fine-tune the rotation of the object.

7. Save Your Work: After you're satisfied with the rotation, don't forget to save your project to ensure that the changes are preserved.

By following these steps, you can easily rotate objects in SketchUp Free to enhance your 3D modeling and design projects. Whether you're working on architectural designs, interior layouts, or any other creative projects, mastering the rotation tool will give you more flexibility and control over your designs. With practice, you'll be able to create dynamic and visually appealing 3D models with ease.

So, go ahead and start experimenting with rotating objects in SketchUp Free to take your designs to the next level! Remember, practice makes perfect, so don't be afraid to try different rotation angles and techniques to find the perfect look for your projects. Happy designing!