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I need help with #63

I need help with #63-example-1
User Swiffy
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2 Answers

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2 and 6 are Corresponding angles
So, 2= 6=36.5 degrees
6+ 8=180 degrees
8=180-36.5=143.5 degrees
User Znlyj
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4 votes

Explanation:

Given that line a is parallel to line b

∠6 = ∠2 = 36.5° (property of corresponding angles)

∠8 = 180° -∠6 (property of adjacent angles on a straight line)

∠8 = 180° - 36.5° = 143.5°

User Alan Friedman
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5.7k points