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Difference between convex and concave quadrilateral

Answer» ONG>Answer:

In a convex quadrilateral each angle measures less than 180°. ... In a concave quadrilateral at LEAST one angle is a reflex angle, i.e., an angle larger than 180°. In FIGURE, ABCD is a concave quadrilateral because a line joining the vertices A and C is going outside the quadrilateral region



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