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Mathematics

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please help me, i really don't know how to solve this question

please help me, i really don't know how to solve this question class=

Answer :

williamwu309 williamwu309

Today at 1:19 AM

Answer:

60 degrees

Step-by-step explanation:

40 degrees + 2y+20 degrees makes a straight angle. (from alternate interior angles postulate)

Thus, 2y+60 degrees = 180, or 2y = 120 degrees.

This means y = 60 degrees

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