Question

Is there a regular polygon with an interior angle sum of 9000°? Justify.

Answer 1

Ya it is correct that there a regular polygon with an interior angle sum of 9000 degree

Answer 2

yes there can be because interior angles of a polygon is measured by the formulae n/2 x 90 for polygons with even no of sides and n-1/2 x 90 for polygons with odd sides.
so polygons with 200 and 201 sides can have the sum of interior angles as 9000.