There is however a mismatch, probably due to rounding of numbers which illustrator does. If you also do the last one, so it should overlap the first one. In outline mode we see a mismatch. small gap, meaning a mismatch I found this by using a different method. I tried a method using the "Pie" slicing options. I noticed this showed a mismatch end, a gap so to speak. Then tried this method and again, same mismatch and a gap again same gap, using pie slice options I used the same number; 6.92deg I even tried 360/52 to make sure it was exactly the same Pie slice settings All nice and dandy that illustrator says it can do math, but its not reliable. See what a calculator comes to with same 360/52 Issue with illustrators math and rounding of numbers Issue is kinda fixed by using a float of 3. so paste in this number. Illustrator again rounds it, but now to 3 decimal. 6.923 gives much better result No visible hole at regular zoom
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