Linked from
The 29 pages that link to Polygon, each with the reason it gives.
Surface areaRelated: Polyhedral surface area is found by adding the areas of polygonal faces.
Line (geometry)Related: Its boundary is assembled from segments of lines.
PerimeterRelated: Its perimeter is found by adding the lengths of its sides.
Giant's CausewayRelated: Many column tops have polygonal outlines, especially hexagons.
Liu HuiRelated: Inscribed polygons provide the geometric basis of his method for approximating π.
Commandino's theoremRelated: The prismatoid's bases and faces are polygonal.