Answer:
x = 30
Step-by-step explanation:
since 2 sides are equal, that means their angles are also equal.
you do 180-120 to get 60 and then divide 60 by 2 to get 30
x=30
We know all the angles a triangle combined are 180 the two bottom angles for this one are equal so we can do
(180-120)/2=30
