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an irregular polygon the interior angles are not equal to each other. Irregular polygons can be categorized

into following two types:

answer:

a) Polygon ABCDEF with AB = 6 cm, BC = 6 cm, CD = 7 cm, DE = 5 cm, EF = 5 cm, FA = 7 cm.

b) Polygon PQRST with angle P = 75 degree, angle Q = 75 degree, angle R = 75 degree, angle S = 75

degree, angle T = 75 degree.

polygon.

polygon. Give reasons for your answer.

Polygon DEFGH with angle D = 160 degree, angle E = 85 degree, angle F = 90 degree, angle G = 205

degree, angle H = 110 degree.

interior angle is greater than 180 degree. Here angle G is greater than 180 degree. Thus the given polygon

can be classified as a concave irregular polygon.