If you're using Sketchup Free for your 3D modeling projects, you may find yourself needing to rotate objects to get the perfect angle. Luckily, rotating objects in Sketchup Free is a straightforward process. Here's how to do it:

1. Select the object: First, select the object that you want to rotate by clicking on it.

2. Activate the rotate tool: Once the object is selected, activate the rotate tool by clicking on the 'Tools' menu and selecting 'Rotate' from the dropdown menu.

3. Choose the rotation point: Click on the point where you want the object to rotate around. This could be a corner, midpoint, or any other point on the object.

4. Rotate the object: Click and drag to rotate the object to the desired angle. You can also type in the exact angle value if precise rotation is needed.

5. Click to confirm: Once the object is in the desired position, click to confirm the rotation.

That's it! You've successfully rotated an object in Sketchup Free. Remember to practice and experiment with different objects to become more familiar with the rotate tool and its capabilities. Happy modeling!