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Phantasy [73]
3 years ago
5

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)

Mathematics
2 answers:
lapo4ka [179]3 years ago
7 0
First box’s is angle addition postulate. The the second box is x=15
Tasya [4]3 years ago
5 0

1. Angle addition postulate

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

180=180

x=15


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