"His high sounding rhetoric boiled down to little more than the premise that as he wanted it, it was his by right."
The theater is the place where epideictic rhetoric belongs.
A rhetorical question
His rhetoric is persuasive.
If you mean how to use the word 'rhetoric' in a sentence, you could say 'His words were just empty rhetoric,' meaning he was just full of hot air and no substance. If you mean how to use a rhetorical device (or figure of speech) in a sentence, a good example is JFK's famous line, "And so my fellow Americans, ask not what your country can do for you - ask what you can do for your country.' This is a device called Chiasmus, where the words in one phrase or clause are reversed in the next, i.e 'country ... you' becomes 'you ... country.'
His speech was dismissed as mere rhetoric by the opposition.
what is a good sentence for the word opposite
A good sentence for the word baffled is:
When being rhetoric u can also be sarcastic. rhetoric is to ask a question that u physicaly dont wnat an answer to, it is good the ask rhetorical question by asking someone a question that they very obviously know the answer to and dont need to answer
Any sentence that properly uses the word additionally is a good sentence. Additionally, the above is a great sentence.
Logos
Your question is a good sentence using the word "common".
"I am using a sentence with the word economics."