Answer:
1. x = 36 is the answer.
2. x = 123 is the answer.
Step-by-step explanation:
1. 4x = angle 4
x = angle 1
Angle 1 + angle 4 = 180
4x + x = 180
5x = 180
x = 36.
2. 55 = angle 2
angle 1 = 68
angle 3 = 55 + 68 = 123 = 180 - 123 = 57
Angle 4 = 57
180 - 57 = 123
x = 123
Hope this helped,
kavitha
