Answer and Step-by-step explanation:
Ok, so,
2x + 6 = 30
2x = 24
x = 12
The sides are congruent to each other, which is why you can equal them to each other to solve for x.
180 - 82 = 98
In a parallelogram, the angles adjacent to each other always add up to 180, which is why we can subtract our angle from 180 to find the missing angle.
Have a Great Day!
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