Question

the sum of interior angles of a polygon is 2160 degrees the number of sides of the polygon will be

Answer 1

Hey.....the answer is :-

Sum of int.angles of a polygon=(2n-4)×90°
Therefore,
(2n-4)×90°=2160
(2n-4)=2160/90
(2n-4)=24
2n=24+4
2n=28
n=14

POLYGON HAS 14 SIDES

Answer 2

2160÷90=14 sides this polygon has