Update app.py

app.py

@@ -178,7 +178,7 @@ def is_valid_triangle(a, b, c):
 def main():
     st.markdown("<h1 style='text-align: left;'>Advanced Triangle Solver</h1>", unsafe_allow_html=True)
 
-    st.sidebar.header("Enter the cartesion coordinates for the three points of a triangle:")
+    st.sidebar.header("Enter the cartesian coordinates for the three points of a triangle:")
 
     # # Coordinates input (X1, Y1), (X2, Y2), (X3, Y3)
     # x1 = st.sidebar.number_input("X1", min_value=-100.0, max_value=100.0, step=0.1, format="%.3f")