diff --git a/crates/ui-egui/src/panels/properties.rs b/crates/ui-egui/src/panels/properties.rs
index 36d3f24e8..84446d84f 100644
--- a/crates/ui-egui/src/panels/properties.rs
+++ b/crates/ui-egui/src/panels/properties.rs
@@ -579,7 +579,10 @@ pub fn transform_section(app: &mut VectorcraftApp, ui: &mut Ui) {
         match &**live {
             vectorcraft_doc::LiveShape::Rectangle { .. } => corner_radius_row(app, ui, &n, "radius"),
             vectorcraft_doc::LiveShape::Polygon { .. } => super::transform::polygon_rows(app, ui, &n, live, "props-polygon"),
-            vectorcraft_doc::LiveShape::Ellipse { pie, .. } => super::transform::pie_rows(app, ui, *pie, "props-pie"),
+            vectorcraft_doc::LiveShape::Ellipse { pie, .. } => {
+                widgets::subheader(ui, tl!("Ellipse Properties:"));
+                super::transform::pie_rows(app, ui, *pie, "props-pie");
+            }
             _ => {}
         }
     }
@@ -752,6 +755,22 @@ mod tests {
         assert_eq!(selected(&app), std::slice::from_ref(&mask), "Edit Clipping Path selects the clipping path");
     }
 
+    /// #3451: the Properties panel Transform section shows ellipse pie angles and Invert Pie.
+    #[test]
+    fn transform_section_shows_ellipse_pie_properties() {
+        let mut app = VectorcraftApp::new(Session::new(), Default::default());
+        app.run("file.new", json!({"width": 300, "height": 300})).unwrap();
+        app.run("shape.ellipse", json!({"x": 50, "y": 50, "width": 120, "height": 80})).unwrap();
+        let ctx = egui::Context::default();
+        let labels: Vec<String> = panel_frame(&mut app, &ctx, vec![], transform_section).into_iter().map(|(t, _)| t).collect();
+        for t in ["Ellipse Properties:", "Pie Start Angle:", "0°", "Pie End Angle:", "360°", "Invert Pie"] {
+            assert!(labels.iter().any(|s| s == t), "{t} in {labels:?}");
+        }
+        app.run("object.setLiveShape", json!({"pieStart": 30, "pieEnd": 120})).unwrap();
+        let labels: Vec<String> = panel_frame(&mut app, &ctx, vec![], transform_section).into_iter().map(|(t, _)| t).collect();
+        assert!(labels.iter().any(|s| s == "30°") && labels.iter().any(|s| s == "120°"), "{labels:?}");
+    }
+
     /// The Snap Options and Scale Strokes & Effects checkboxes keep a visible box at rest in every
     /// theme, as the Preferences ones do (#1080), and toggle when clicked.
     #[test]
diff --git a/crates/ui-egui/src/panels/transform.rs b/crates/ui-egui/src/panels/transform.rs
index 67a407f02..92cedee07 100644
--- a/crates/ui-egui/src/panels/transform.rs
+++ b/crates/ui-egui/src/panels/transform.rs
@@ -505,6 +505,24 @@ mod tests {
         assert!(live(&app).polygon_sides_equal());
     }
 
+    /// #3451: a live ellipse shows pie start/end angles and Invert Pie in the Transform panel and
+    /// the Properties panel's Transform section; typed angles update the shape.
+    #[test]
+    fn an_ellipse_shows_its_pie_properties() {
+        let mut app = VectorcraftApp::new(vectorcraft_engine::Session::new(), Default::default());
+        app.run("file.new", json!({"width": 300, "height": 300})).unwrap();
+        app.run("shape.ellipse", json!({"x": 50, "y": 50, "width": 120, "height": 80})).unwrap();
+        for draw in [show as fn(&mut VectorcraftApp, &mut Ui), crate::panels::properties::transform_section] {
+            let shown = texts(&mut app, draw);
+            for t in ["Ellipse Properties:", "Pie Start Angle:", "0°", "Pie End Angle:", "360°", "Invert Pie"] {
+                assert!(shown.iter().any(|s| s == t), "{t} in {shown:?}");
+            }
+        }
+        app.run("object.setLiveShape", json!({"pieStart": 30, "pieEnd": 120})).unwrap();
+        let shown = texts(&mut app, show);
+        assert!(shown.iter().any(|s| s == "30°") && shown.iter().any(|s| s == "120°"), "{shown:?}");
+    }
+
     #[test]
     fn the_artboard_tool_shows_the_active_artboard() {
         let mut app = VectorcraftApp::new(vectorcraft_engine::Session::new(), Default::default());