Answer:
Explanation:
You would do 360-(17x+5)= which would get you that angle of the rest of that. Then u would do take that answer and minus it from 360 which would get your answer
90°
17x+5 and 18x are corresponding angles and because we have parallel lines these two angles are congruent.
17x+5=18x
5=18x-17x
5=x
17x+5=17*5+5=85+5=90°
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