A polygon with an interior angle sum of 2880 degrees has 20 sides. This can be calculated using the formula for the sum of interior angles, which is ( (n - 2) \times 180 ) degrees, where ( n ) is the number of sides. Setting the equation ( (n - 2) \times 180 = 2880 ) and solving for ( n ) gives ( n = 20 ). Therefore, the polygon is a 20-sided figure, known as an icosagon.
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Interior angles add up to 2880 degrees
It will have (2880+360)/180 = 18 sides
(18-2)*180 = 2880 degrees
(18-2)*180 = 2880 degrees
The interior angles of an 18 sided polygon add up to 2880 degrees