I've experiencing for a while but this is Finding missing angles. Please help me!!
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Answer:
15° = x
Step-by-step explanation:
By the Supplementary Angles Theorem, you add m<x by 165, and set that equal to 180°, or π. Of course you have to do the inverse of addition in order to get this, so deduct 165 from 180 to end up with 15.