ArcGISWindowsPhoneSDK.Simplify.drawPolygon C# (CSharp) Method

        private void drawPolygon()
        {
            MapPoint center = MyMap.Extent.GetCenter();
            double lat = center.Y;
            double lon = center.X + 300;
            double latOffset = 300;
            double lonOffset = 300;
            ESRI.ArcGIS.Client.Geometry.PointCollection points = new ESRI.ArcGIS.Client.Geometry.PointCollection()
            {
                new MapPoint(lon - lonOffset, lat),
                new MapPoint(lon, lat + latOffset),
                new MapPoint(lon + lonOffset, lat),
                new MapPoint(lon, lat - latOffset),
                new MapPoint(lon - lonOffset, lat),
                new MapPoint(lon - 2 * lonOffset, lat + latOffset),
                new MapPoint(lon - 3 * lonOffset, lat),
                new MapPoint(lon - 2 * lonOffset, lat - latOffset),
                new MapPoint(lon - 1.5 * lonOffset, lat + latOffset),
                new MapPoint(lon - lonOffset, lat)
            };
            ESRI.ArcGIS.Client.Geometry.Polygon polygon = new ESRI.ArcGIS.Client.Geometry.Polygon();
            polygon.Rings.Add(points);
            polygon.SpatialReference = MyMap.SpatialReference;
            _unsimplifiedGraphic.Geometry = polygon;

            GraphicsLayer graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
            _unsimplifiedGraphic.Symbol = LayoutRoot.Resources["PolygonFillSymbol"] as ESRI.ArcGIS.Client.Symbols.Symbol;
            graphicsLayer.Graphics.Add(_unsimplifiedGraphic);
        }