how many angle of a concave quadrilateral are greater than 180?show by figure.
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Step-by-step explanation:
You can easily construct a quadrilateral with three obtuse angles — just make a kite with a very long skinny bottom half and an obtuse angle on top. Dear student, The sum of the interior angles of a concave quadrilateral must be 360 degrees (you can always divide it into two triangles of 180 degrees each)
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