Question

Question 6 (a)
(a) What is the minimum interior angle possible for a regular polygon? Why?

Answer 1

(a) The equilateral triangle being a regular polygon of 3 sides has the least measure of an interior angle of ${60}^{\circ }$.
sum of all the angles of a triangle = 1800
$x+x+x={180}^{\circ }$
$\Rightarrow 3x={180}^{\circ }$
$\Rightarrow x={60}^{\circ }$