Let the number of sides in the polygon be $$n$$ Each interior angle of a polygon = $$frac{(n-2) imes180}{n}$$ and each exterior angle of a polygon = $$frac{360}{n}$$ Acc to ques : => $$frac{frac{(n-2) imes180}{n}}{frac{360}{n}} = frac{3}{1}$$ => $$frac{n-2}{2} = frac{3}{1}$$ => $$n - 2 = 6$$ => $$n = 8$$