Default UI Menu: Draw/Rectangle
Ribbon UI Menu:
Creates an orthogonal rectangle by defining two diagonally opposite corners.
- Select the first corner.
- Select the diagonally opposite corner. You can also enter the size in the Inspector Bar.
Fillet Corners: If this option is turned on a the corners of the polygon will be rounded by filleting. A Radius F field appears in the Inspector bar that allows you to specify the radius of the fillets.