Question

What is a box with dotted border that holds a place for content on a slide called?

Answer 1

Placeholders

Explanation: Placeholders are boxes with dotted borders that hold content in its place on a slide layout. Slide layouts contain different types of placeholders (for example, for text, pictures, videos, and more). You can change a placeholder by resizing or repositioning it on a slide layout. You can also delete a placeholder.