Each Exterior Angle of a Regular Polygon

Each exterior angle of a regular polygon of sides n is
360/n

  



Example. If each exterior angle of a regular polygon is 30 degree then the number of sides  is
a) 10
b)8
c)14
d)12

Sol.  Now,  (360/n) = 30
                   =>n= 360/30
                   =>n= 12

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