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Related to regular polygon: regular polyhedron, Irregular polygon, quadrangles
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|Noun||1.||regular polygon - a polygon with all sides and all angles equal|
isogon - an equiangular polygon
foursquare, square - (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon; "you can compute the area of a square if you know the length of its sides"