[tex]\huge\sf{Answer :- }[/tex]
Given :-
- Each interior angle of regular polygon is 120°
To Find :-
- Number of sides of the polygon
Formula :-
Interior angle of the polygon = [180(n - 2)]/n
where,
Solution :-
Let, The number of sides of polygon be n
By substituting values according to the formula,
➯ [180(n - 2)]/n = 120°
➯ 180n - 360 = 120n
➯ 180n - 120n = 360
➯ 60n = 360
➯ n = 360/60
➠ n = 6
Hence, The regular polygon have 6 sides
