Hi.
First, I am going to give you some definitions.This will help you do the problems.
-Complementary angles have a combined sum of 90.
- Supplementary angles have a combined sum of 180.
10. 40+50=90- so YES.
12. 159+20= 179.-so NO.
Make sure you learn the definitions properly next time!
=)
Answer:
STOP CHEATING ON AOPS WORK!!!!
Step-by-step explanation:
1. pay attention in class
2. ask message board if you need to
3. stop googling answers
4. you paid lots of money for this course so its all going to waste now thanks to your laziness you ugly piece of sH*t