Access: Click the 
icon,
or Select Curves / Circle from
the main menu.
Create a Circle/Arc by picking 3 points.
Required Step 1 
Pick the start point of the Circle/Arc:
Pick the point through which the Circle/Arc will pass:
Pick the end point of the Circle/Arc:
The Circle/Arc is created. There is always only one possible solution:
If this is the final result, press OK
or Apply 
in the Feature
Guide to complete the function.
When completed, the Circle will appear in the Feature Tree as follows:
