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홍동화,서보억,박은익,유성훈,최은서 영남수학회 2015 East Asian mathematical journal Vol.31 No.4
While some studies have examined the concave and convex regular polygons respectively, very little work has been done to integrate and restructure polygon shapes. Therefore, this study aims to systematically reclassify the regular polygons on the through a comprehensive analysis of previous studies on the convex and concave regular polygons. For this study, the polygon’s consistency with respect to the number of sides and angles was examined. Second, the consistency on the number of diagonals was also examined. Third, the size of the interior and exterior angels of regular polygons was investigated in order to discover the consistent properties. Fourth, the consistency concerning the area in regular polygons was inspected. Last, the consistency of the central figure number in the “k-th” regular polygons was examined. Given these examinations, this study suggests a way to create a concave regular polygon from a convex regular polygon.