120 ^ { \circ } \quad ( b ) 180 ^ { \circ } \quad ( c ) 360 ^ { \circ – InterviewSolution

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1.

120 ^ { \circ } \quad ( b ) 180 ^ { \circ } \quad ( c ) 360 ^ { \circ } \quad ( d ) 720

Answer»

Sum of interior angles of any polygon is (n-2)π.where n is the sides of polygon.

In quadrilateral there are 4 sides, therefore the sum of angles = (4-2)π = 2π =2(180°)=360°

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