Question

how many sides does a regular polygon have if each of its interior angle is 60 degree
step by step answer​

Answer 1

Answer:

$\frac{(n-2)180}{n} = 60\\\frac{180n-360}{n} = 60\\\\ 180n - 360 = 60 n$:

(180n - 360 )/ 60 = n