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Math problem in the first day of junior high school: It is known that the sum of degrees after a polygon is missing an inner angle is 2300.
Solution: internal angle sum formula: 180*(n-2)
Let the number of sides of a polygon be n, and the number of internal angles with fewer polygons be x.
Deduce (n-2) × 180-x = 2300 according to the topic: (n-2 )×180-2300 = x.
Since x is the inner angle of a polygon, 0 < x < 180.