Answer :
3 number of sides
Step-by-step explanation:
sum of interior angles= (n-2)180°
=> 60x=(x-2)180
60x=180x-360
=> 60x-180x=180x-180x-360
-120x=-360=> x=3
3 number of sides
Step-by-step explanation:
sum of interior angles= (n-2)180°
=> 60x=(x-2)180
60x=180x-360
=> 60x-180x=180x-180x-360
-120x=-360=> x=3