ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Geometry Namespace / EllipticArcBuilderEx Class / SetRadius Method
Version

SetRadius Method
Overload List
OverloadDescription
Sets the radius of a circular arc. If the arc is not circular, sets both the semi-major and semi-minor axes to the same value.  
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also