When working with multiple slide objects, you should have a visual cue about where you are placing slide objects. You can get exact coordinates of your slide objects using the positioning options in PowerPoint — but most of the time, you just need an approximate idea of where your objects are placed — and this can be easily obtained by using the Rulers available option in PowerPoint. By default, the Rulers may not visible, but when made visible — they are located on the top and left parts of the active slide.
Learn about viewing and using Rulers in PowerPoint 2013 for Windows.

