Respuesta :

viripopoca67

Answer:

30

Step-by-step explanation:

marcthemathtutor

Answer:

30°

Step-by-step explanation:

see attached.

If one angle is given as 120 deg,

because the triangle is isosceles, that mans that the base angles are identical. Hence, the other angles must be (180 - 120) / 2 = 30 deg

Ver imagen marcthemathtutor