The number of sides of the polygon is 18.
Explanation:
Given,
The sum of interior angles of a polygon is 2880°
To find the number of sides of the polygon.
Formula
The sum of the interior angle of n side polygon is (n-2)×180°
According to the problem,
(n-2)×180° = 2880°
or, n-2 =
or, n-2 = 16
or, n = 18
Hence,
The number of sides of the polygon is 18.