Complementary angles
Adjacent angles
Correct
Excuse if I have this wrong but I’m going to guess that in every question how the 2 is up the m or the other letters that means you are multiplying that number/ letter by its self one more time so I’m not really sure, I’m sorry.
Answer: This study uses a control group, this study uses repeated measures design, and this study uses random sampling
Step-by-step explanation: