Question

choose the correct button name used to add extension in slide​

Answer 1

Explanation:

Choose another size, such as A3, B4, or Overhead

On the Design tab of the Ribbon, locate Slide Size in the Customize group, near the far right end of the toolbar.

Select Slide Size.

Choose Page Setup from the menu that appears. ...

In the Slide Size box, click the down arrow next to Slides sized for and select an option.

Answer 2

Answer:

Sorry to say mate I don't know the answer