Is there a formal name for an irregular polygon that has 1 or more holes or cutouts in it? I've heard it refered to as a "swiss cheese polygon" or a "Donut polygon". Is this even strictly a polygon?
Formal name for polygon with hole
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geometry
terminology
polygons
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0@rschwieb Maybe I should have phrased it in the following way: "*the* plane figure of 'maximal area' bounded by a closed curve", although this is not quite precise. – 2012-08-29