Answer:

Step-by-step explanation:
In every parallelogram, when you have two diagonal segment bisectors, you will always have a circumcentre showing all midpoints of both segment bisectors, plus, it measures 90° all around, so to get the m∠2, simply do this:
180° = 30° + 90° + m∠2
180° = 120° + m∠2
- 120° - 120°
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