Constructing a hexagon with one dimension

To construct a hex on a polar grid with one
dimension:

Polar Grid: (Sketcher Mode)

Grid Snap - on/off

Polar - Section Tools - Polar

Section Environment - Grid - Type- Polar (Spider Web)

To construct the hexagon:

Use the polar grid - snap on.

Add two (2) constructive tangent circles to the flats and to the points.

Dimension only the one circle. The hex is made.