ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMGeometricEffectRegularPolygon Class / Edges Property

Edges Property (CIMGeometricEffectRegularPolygon)
Gets or sets the number of sides for the polygon. Specifying a value less than 3 produces a circle.
Syntax
public int Edges {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also