Which isomer of 1-ethyl-3-methylcyclohexane is more stable, cis or trans?

Question

My teacher hasn't covered this material as of yet, but we have a test done tomorrow on it.
What is a cis and trans? Not sure how to begin figuring this out. My text book isn't helpful.

Thanks

Answer 1

https://en.wikipedia.org/wiki/Cis%E2%80%93trans_isomerism