There are multiple ways in which you can rotate the text in your presentation in Google Slides. To be precise, there are 3 ways to do it.
Step-1 The first step of the process is to “Right-click” on the textbox that contains the text that you want to rotate.
After you have clicked on the “Rotate” option, you will be able to choose between rotating your text 90 degrees clockwise, or anticlockwise.
Simply select and hold the “Rotate handle” and adjust the rotation by moving the mouse of your computer, let go of the mouse once you have adjusted to your preferred angle.
Step-1 Select the textbox, click on the “Arrange” tab, which is the 7th tab in the ribbon of your Google Slides presentation window.
This step is similar to the first method shown earlier. You have to select your preferred style of rotation from the “Rotation” option and the text will be rotated accordingly.