Geometry Practice Test 3

YAX is a tangent to the circle with center O.
∠BAX = 70°
∠BAQ = 40°
∠QAX = ∠BAX -∠BAQ
∠QAX = 70° - 40°
∠QAX = 30°
∠QAX = ∠ABQ = 30° (alternative interior segment property]
∠ABQ = 30°