i played a bit more with different ways to achieve "segments" easily and came up with creating a triangle brush as the starting point. (a little long winded but really not much to it)
1. make a triangle with the short side oriented to the top and the approximate size of the segment that you want.
2. create a brush using this triangle.
3. make a circle with a large line thickness to start with and while the circle is selected click on "freehand and brush tool" and then select your newly created triangle brush to replace the regular edge with a triangle segmented edge.
4. change the line thickness (i went to 300px) to get the overall approximate diameter and then back in "brush tool" select "edit brush" and in the "spacing" tab increase the spacing to get the effect you desire. (for a roulette wheel you need 19 segments as evenly spaced as possible)
5. once satisfied "convert to editable shapes" and then "convert line to shape" (must be in this order)
now you can do whatever manipulation you want to this shape (including "ungroup" to get completely individual slices)
in the roulette wheel case - use a smaller circle to slice the outer edge of the segments into squares. color them all at once or ungroup and color individually, etc....
done in a few minutes with no math involved (and i actually like math and minored in it )
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