Answer:
Explanation:
Refer to attached picture
The small triangle on the top left has one angle 50° and the other two are same:
- 180° - x, as they for a straight angle with x
Sum of the angles in the triangle:
- 50° + 2(180° - x) = 180°
- 50 + 180° - 2x = 0
- 2x = 230°
- x = 115°