Minimum possible interior angle in a regular polygon is ______________.

70° 60° 90° 120°

60°

$\text{A polygon with minimum interior angle and maximum exterior angle}$ $\text{is an equilateral triangle. It has minimum number of slides i.e. 3.}$ $\text{Let the angle of the equilateral triangle be x. So, we can say that:}$ $\text{x + x + x = 180º}$ $\text{3x = 180º}$ $\text{x = 60º}$