What is the value of x + y in

Cydney Seigerman, Magoosh Tutor

Hi Tobias, thanks for your question! It looks like this is an error in the explanation video. The value of Z and its supplementary angle of Z is 180? (per the definition of supplementary angles). So, given Z = 125, then the supplement should be equal to 55, not 65. That said, in the context of the explanation, this mistake doesn't impact the overall analysis of the question itself.

That said, I hope this clarifies the explanation! Thanks again for your comment :)

Dec 19, 2016 • Reply