Change proportion of slide to speaker notes in powerpoint 16.10 for mac

To change the aspect ratio of the slides, then choose either a “Standard” or “Widescreen” aspect ratio. Then click the “Slide Size” drop-down button in the “Customize” button group on the “Design” tab in the Ribbon. To change the size of slide in PowerPoint, open the presentation to change. You can easily change the size of slides in PowerPoint. Change the Size of Slides in PowerPoint: Overview