Select center point [Choose center point] and select radius [Choose radius]:

Click on the desired center point (not visible!) and drag the N-corner with the cursor.

Note The center of [Center point] an N-corner does not represent a catch later!

A corner of the polygon will lie at the cursor position and thus determine the start angle [Start angle] (which you can change later in the Edit element dialog). If the point is horizontal, the start angle [Start angle] is 0°.

Note If you want the center point to snap to the grid, you must activate Snap to grid in the quick settings. Snap onto the grid [Snap to grid]

Note If you want the width across flats to snap to certain increments, you must activate Scalar parameters in the settings. "Scalar parameters [Scalar parameters]" activated

Moving the mouse pointer in a circle around the center point changes the number of corners.

The smaller the angle between the auxiliary lines, the greater the number of corners.

Fix the number of corners with a mouse click.

-> The individual values of the N-corner are displayed in the Edit element docking window and can be adjusted if necessary.