If sum of Interior Angles of a polygon is 31/2 its sum of Exterior angles ,then what is the shape of the polygon. Justify
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let the number of sides of polygon be n.
sum of interior angles = (n-2)*180
sum of exterior angles =360 deg
sum of interior angles = 3 1/2 (=(3*2+1)/2=7/2)of sum of exterior angles
thus the polygon has 9 sides .and the polygon is nonagon.
hope this helps you.
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