Question

what is the fill handle? the square at the corner of a cell that can be dragged to indicate the values of other cells. a button used to access layout options. a button that appears after you paste.

Explanation:

In spreadsheet software like Excel, the fill - handle is the small square at the bottom - right corner of a selected cell or range of cells. It can be dragged to copy data or fill a series of values into other cells.

Answer:

The square at the corner of a cell that can be dragged to indicate the values of other cells.