Here's the question you clicked on:
Ambbiiee
. The measure of an exterior angle of a triangle is ________. A. greater than the measure of either of the remote interior angles. B. 180 degrees C. equal to the sum of the measures of the other two exterior angles. D. 90 degrees
Here is a great reference for you: http://www.mathopenref.com/triangleextangle.html That is a good site.
You can eliminate two options immediately if you look at that link.
i can eliminate c and d @theEric
I'll help you get all the way to the correct answer, but you'll be the one to get there. I'll help guide you.
the link says "An exterior angle of a triangle is equal to the sum of the opposite interior angles." C is explaining exterior
Right! There you have your answer :) And I could prove it, but we don't need to go into that if you can just memorize it. :) Congrats!