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Explanation & Answer
1) 30 degree
Angle of regular hexagon is 120 degree just subtract 90 degree from it and you will get the answer.
2) 3x - 8 + 2x + 20+ 2x + 14 + x - 16 = 360
8x + 10 = 360
8x = 360 - 10
x = 350/8 = 43.75 degree.
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