how do i do this?? if i can get the 4 questions right, my grade will go up a bit

Answer:
It should be 60 or 45 degrees. Pretty sure its 45
Step-by-step explanation:
I did this in 10th grade and we had a 30 60 and 90 degree rule. and a 45 45 90 degree rule.
Lemme know if I helped :)