Update app.py

app.py

@@ -327,6 +327,10 @@ def create_demo():
                 "./examples/9.png",
                 "Does Virginia have the highest value in the USA ?"
             ],
+            [
+                "./examples/10.png",
+                "AB is the diameter of ⊙O, PA is tangent to ⊙O at point A, and PO intersects ⊙O at point C; connect BC, if ∠P = 40.0, then ∠B is equal to ()"
+            ]
         ]
         
         gr.Examples(