What is the value of x?



15

20

60

180
An isosceles triangle with base angles labeled 60 degree and the other labeled open parenthesis 3 x closed parenthesis degree.

Relax

Respuesta :

All angles of a triangle add up to 180.
2 of them are 60 -> 60+60=120
This means the last angle is 60
60/3 = 20