finding angle of paralelogram

Two parallel lines cut by a transversal..... something about angles. Does this sound formula?
 
I have no idea how to get angle s or angle R. I need help geting started. Don't know if i need to use an equation or what. I have not been taught this before.
 
I have no idea how to get angle s or angle R. I need help geting started. Don't know if i need to use an equation or what. I have not been taught this before.
What do you know or can find about angles in a parallelogram?
 
i know nothing about solving angles in a parallelogram when the number has n i am cofused because of the n
 
i know nothing about solving angles in a parallelogram when the number has n i am cofused because of the n
I confess that I have never in over fifty years of teaching college geometry seen \(\displaystyle 10n^o\) as a notation.
So let's guess. Say that means the measure of the angle. That means \(\displaystyle 10n^o+8n^o=180^o\) then \(\displaystyle n=?\)
 
I just started learning this today on my own. So I have trying to under stand notes from my teach I just didn’t catch that they add to 180
 
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