I recently decided to start upgrading my cookware from my old analon set (that is falling apart). After reading many posts and reviews I bought an 11” fry pan from Falk. When I received the pan while it definitely felt like a quality pan, it looked a little small (compared to what I had) so I measured cooking area (bottom of the pan) and was a little disappointed to find that it was only 9 ½ inches. I contacted the sales people and was told pans are not measured by the bottom by rather rim to rim. I just wanted to check is that the normal?