And are they interchangeable?
What Are Baking Pans?
The edge also helps keep any toppings or crumbs from falling off the edge into your oven.

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They are designed with minimal edges to easily slide cookies off the baking pan without breaking the cookie.
Compared to baking pans, these pans have more limitations because the surface is entirely flat.
These are made with two layers of metal with an open layer between which insulates the air.

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This can help with more even baking and to help avoid hot spots.
This design encourages a slower cook time and a consistent bake for the cookies.
What Do Baking Pans and Cookie Sheets Have in Common?
Baking pans and cookie sheets have notable similarities, one being the materials in which they are commonly found.