Step-by-step explanation:

Is this a serious question?
Answer:
7) Obtuse, I didn't use a protractor, so I'm estimating about 130 degrees.
8) Straight, all straight lines are equal to 180 degrees.
9) Acute, I estimated about 30-40 degrees, again, no protractor used.
Step-by-step explanation:
Your answer is C
It's hard to describe I did it all in my head but please trust me that C is correct