Answer: x= 155 degrees
Explanation:
All angles in a triangle add up to 180. That is how we find angle a
a + b = 120 degrees as 60 degrees is taken for a straight angle or 180 degrees.
Use Algebra to find angle b
To find c we do the same thing as for a.
x is everything remaining from 180 degrees after c is taken from it.
x = 155 degrees