Question

100 points, please help? its my last question im stuck on and im almost done! explanations are appreciated too (i wont forget to give u brainly as well)

Answer 1

First box’s is angle addition postulate. The the second box is x=15

Answer 2

1. Angle addition postulate

2. 2(15)+4(15)+6(15)=180

180=180

x=15