diff --git a/.changeset/nervous-owls-retire.md b/.changeset/nervous-owls-retire.md
new file mode 100644
index 0000000000..11bc441783
--- /dev/null
+++ b/.changeset/nervous-owls-retire.md
@@ -0,0 +1,5 @@
+---
+"@khanacademy/perseus": minor
+---
+
+Polygon interactive graphs use the legacy graph when numSides is set to unlimited
diff --git a/packages/perseus/src/widgets/interactive-graph.tsx b/packages/perseus/src/widgets/interactive-graph.tsx
index a4877678ff..00e6c9f8bb 100644
--- a/packages/perseus/src/widgets/interactive-graph.tsx
+++ b/packages/perseus/src/widgets/interactive-graph.tsx
@@ -1815,6 +1815,18 @@ class InteractiveGraph extends React.Component<Props, State> {
     }
 
     render() {
+        if (
+            this.props.graph.type === "polygon" &&
+            this.props.graph.numSides === "unlimited"
+        ) {
+            return (
+                <LegacyInteractiveGraph
+                    ref={this.legacyGraphRef}
+                    {...this.props}
+                />
+            );
+        }
+
         // Mafs shim
         if (this.props.apiOptions?.flags?.["mafs"]?.[this.props.graph.type]) {
             const box = getInteractiveBoxFromSizeClass(