Answer: C.0
x + 45 is the angle outside the circle of shield 2 arcs with measurements 55 and 145
=> x + 45 = 1/2.(145 - 55)
⇔ x + 45 = 1/2. 90
⇔ x + 45 = 45
⇔ x = 0
Step-by-step explanation:
