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What is the value of y when line m is parallel to line n?

What is the value of y when line m is parallel to line n?-example-1
User Mafis
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6 votes

Answer:

y = 150

Explanation:

User Toby Wilson
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Angles B and D are supplementary angles, so if B's angle is 30 degrees, then D's angle at y would be 150, since they have to add to 180.
In short, angle y = 150
User John Bellone
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