How to append sphere to drawing

Hi

how can I append a 3d sphere into the drawing. Sample below works for the circle but not for the spheres why and how to solve this thx

    
Public Sub addSpheres()
Dim lcmd As Editor = Application.DocumentManager.MdiActiveDocument.Editor
Dim acbaza As Database = lcmd.Document.Database
Using trn As Transaction = acbaza.TransactionManager.StartTransaction
       Dim btr As BlockTableRecord = CType(trn.GetObject(acbaza.CurrentSpaceId, OpenMode.ForWrite), BlockTableRecord)
       Dim sph As Sphere = New Sphere(1, New Point3d(1.0, 1.0, 1.0), Vector3d.XAxis, Vector3d.YAxis, 0.0, 0.0, 0.0, 0.0)
       btr.AppendEntity(sph)
       trn.AddNewlyCreatedDBObject(sph, True)
       trn.Commit()
End Using
End Sub

You could insert a circle and revolve said circle into a sphere

EDIT:

(setq f(vla-addsphere 
 (vla-get-modelspace
   (vla-get-activedocument
     (vlax-get-acad-object))) 
 (vlax-3d-point(list 0.0 0.0 0.0 ))    ;Insertion point
  20.0))                                     ;Radius

The above code is what you're looking for i think

I don't have VBA in 2010 but the code should be roughly

Activedocument.modelspace.addsphere(insertionPoint, radius)

As far as I am aware pre existing entites don't require a constructor statement in VBA

Thx for the solution works fine