Yes, they are the same in general but there are some differences in the details. Most of the teeth on rings are longer and engage further through the chain than the teeth on the cassette. Cassette teeth are as short as possible to optimize shifting and just barely go past the mid-plane of the chain. A little bit of wear and they'll skip with a new chain. Also, the rings are larger than the cogs so the load is distributed over more teeth. It takes more dramatic and obvious wear before the rings will skip.

Agree that only the last pictured ring looks shot. Others look fine.