Do you simply take the word of that Catholic Church that they are the same?
Depends what is meant by "simply take the word of the Catholic Church". I certainly don't say, "Sacred Tradition is the same as taught by the Apostles because my parish priest says so" and no other reason. If that's helpful.
But I'm asking you, not myself, "What kind of evidence would convince you?" Please note, I do not have a desire at this time to expound on the types of evidences I have accepted.
If you don't want to answer the question that's fine. I was just asking.