Change the size of your slides - Microsoft Support

Use Widescreen (16:9) or Standard (4:3) or choose a custom size for your slides.

How To Change The Dimensions of a Slide in Microsoft PowerPoint?

Change the default font in PowerPoint - Microsoft Support

Change the size of your slides - Microsoft Support

Create or change a presentation's handout - Microsoft Support

Use multiple slide masters in one presentation - Microsoft Support

Presenting with cameo - Microsoft Support

Change the color of text on a slide - Microsoft Support

How to Change the Slide Size in PowerPoint Presentations

Change the Size of Slides in PowerPoint - Instructions

How to create the document (Microsoft PowerPoint) (Windows)