Help with creating rounded triangle in Illustrator?

Discussion in 'Design and Graphics' started by dopey220, Feb 2, 2007.

  1. macrumors 6502


    Jul 19, 2006
    I want to create a rounded-corner triangle in Illustrator with dimensions of approximately 100-40-40 (degrees). I've tried a few different approaches, but nothing has panned out so far. How should I do it?
  2. macrumors 68040


    Jan 24, 2005
    St. Louis, MO
    Create your triangle first, with the right dimensions, and then go to Effect>Stylize>Round Corners. Easy as pie.
  3. thread starter macrumors 6502


    Jul 19, 2006
  4. macrumors newbie

    Feb 14, 2011
    Creating Triangles with rounded corners but keep inside angles sharp

    This method is great if you want the inner and outer angles all rounded. But if you want only the points of the triangle rounded, then you'll need to do this:

    1. Make a normal star and make a copy of it just to the side of it.
    2. With the new copy, apply the 'round corners' effect as described above.
    3. Align the two stars (both the rounded and original triangle).
    4. Carefully Select the star with rounded corner effect and Choose Object > Expand Appearance.
    5. Select both stars (make sure that original triangle is on top) and use the 'Crop' Tool in the pathfinder. It will correct the inside angles, and then all you need to do is carefully select the pointy tips and easily delete them.

    This will leave you with rounded tips and keep the sharp angles inside.

    You can alter the softness of the tips by using a different corner radius in the "round corners" dialog.

  5. Guest

    Erm, WHATTTTT?????? That makes no sense.
  6. macrumors newbie

    Sep 14, 2010
    Creating Rounded Triangles In Illustrator Using Line Tool

    Use the Line Tool to draw a triangle (make sure you snap to anchor).

    Use the Black Arrow to Select the whole triangle.

    Object > Path > Join (to make the three lines into a one path)

    Effect > Stylize > Round Corners, make sure you hit preview and use a radius that is large enough to be seen (1/10 of the line length say).
  7. macrumors newbie

    Feb 19, 2006
    I had to re-read his post several times to figure out what he was talking about, but... I think he meant this.

    Rounded tips on the outside, with a normal triangle on the inside. Strange, I know.

    Attached Files:

  8. macrumors member

    Sep 11, 2007

    I would draw the triangle, then do Object>Path>Offset Path, then choose amount to offset by, say 4mm, and choose rounded bevel instead of mitre.


  9. macrumors newbie

    Oct 24, 2015
    Thank you very much :)

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