I am trying to create this shape in Illustrator and finding it particularly difficult:

enter image description here

Creating a circle and cutting it into thirds isn't that difficult but rounding the corners similarly on each side is a bit more tedious - I can't think of how to round the corners another way than making a complex cookie cutter shape and using Pathfinder.

Can this shape be created simply and quickly in Illustrator?

  • Select the corners with the white arrow tool and drag the round corner widget?
    – joojaa
    Commented Apr 22, 2022 at 6:07
  • @joojaa this is not an option once you clip a circle into a half circle Commented Apr 22, 2022 at 6:13
  • It definitely is. You might just have two overlapping points or your settings cap rounding widget visibility for angles this thight. In either case it does work. Try just setting the value of round in the top horizontal toolbar.
    – joojaa
    Commented Apr 22, 2022 at 6:28
  • 1
    @Kyle But thats the answer. Illustrator will not become a tool that can simply do this. Adobe had the option to do this whan they released CS1 they just didnt press the advantage of the live vector styles so iot would be a full on node network. And adobe is occupied with other things since then. A shame but reality
    – joojaa
    Commented Apr 22, 2022 at 7:04
  • 1
    @MicroMachine You can make ilustrator make the object auto symmetric though. Just not round the corners, since the round effect is broken (adobe has had 10 years to fix this they havent so they will never do it)
    – joojaa
    Commented Apr 22, 2022 at 7:08

1 Answer 1


Is it possible there is something off in your construction of the cut circle shape ? Corner widgets will work (must use white arrow tool to select the points). Make sure View> Show/Hide Corner Widgets is ticked on. This works for a circle cut with a rectangle by pathfinder> minus front (shown) and also for a circle cut with scissor tool and then joined to form a closed shape.

enter image description here

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