Hotkey: P, Shift+ P
Default UI Menu: Modes/Coord System/Polar Coords
Ribbon UI Menu:
Polar (length and angle) coordinates relative to a specified origin. The relative origin (moving or fixed) behaves the same way as for Relative coordinates.
Tip: If you precede a coordinate with a > sign it will be interpreted as a polar coordinate.
You can enter the distance and angle to the selected point in the Coordinate Fields.