So here we go, lines OA and OB are radii of the circle O since the measurement of ∡ O is given it is easy to find the other measurements. 180-85 = 95° (all the sides of a triangle = 180°) That angle divided by two [tex] \frac{95}{2} [/tex] = 47.5° We know that the radii are the sides which makes that triangle isosceles. So m∡BAC = 47.5° Answer is B)47.5
