A pie chart with tick marks
There is a strong consensus that our perception is bad at comparing slices in a pie chart, and that’s one of the reasons why they shouldn’t be used. Personally, I find their low data density much more relevant to justify not using them.
Anyway, if you are worried about comparing slices, adding tick marks can help. Too bad you can’t just use that option like you do in any other chart and have to find creative ways to do it!
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