ArcGIS Javascript API Drawing graphics from a feature layer query not appearing in graphics layer

Question

I'm trying to draw the features resulting from a query of a feature layer onto a graphics layer.

var query = abstracts.createQuery();
query.where = "ANUM = '1'";
query.returnGeometry = true;
var rl = map.findLayerById("graphics");
abstracts.queryFeatures(query).then(function (results) {
 rl.removeAll();
 var features = results.features.map(function (graphic) {
 graphic.symbol = new SimpleLineSymbol({
 size: 6.5,
 color: "darkorange"
 });
 return graphic;
 });
 rl.addMany(features);
});

When I set a breakpoint before the last line(rl.addMany(features)), I see that features contains the expected feature, and the symbol is set properly. Also, I know that the feature exists, but is not appearing on the map. Also, below is my declaration of feature layer and graphics layer.

 var abstracts = new FeatureLayer({
 url: "@arcgisServerServiceUrl/" + featureLayerId,
 outFields: ["*"],
 visible:false,
 mode: FeatureLayer.MODE_ONDEMAND,
 maxScale: 0,
 minScale: 290000,
 renderer: renderer,
 });
 var resultsLayer = new GraphicsLayer({id:"graphics"});
 map.layers.addMany([
 abstracts,
 resultsLayer,
 ]);

Answer 1

I can't answer why what I did above didn't work, but I can give the answer I found. For each feature in results.features above:

 var polygon = new Polygon({
 rings: feature.geometry.rings
 });
 var lineSymbol = new SimpleLineSymbol({
 color: [226, 119, 40],
 width: 4
 });
 var polygonGraphic = new Graphic({
 geometry: polygon,
 symbol: lineSymbol
 });
 resultsLayer.add(polygonGraphic);