Это автоматический перевод.

По 3-м точкам

Toolbar / Icon:
       
Menu: Рисовать > Дуга > По 3-м точкам
Shortcut: A, 3
Commands: arc3 | a3

Description:

If you know the start point, the end point and a point in between on the arc line, you can use this tool to draw an arc.

Procedure:

  1. Set the start point using the mouse or enter a coordinate in the command line.
  2. Set the second point to a known point on the arc line.
  3. Set the endpoint of the arc.