Line B touches the circle at a single point. Line A extends through the center of the circle. I. What is line b in reference to the circle?
2. How large is the angle between lines A and B?

If I understand correctly. Line B is parallel to the circle. Also, the angle is less than 90.

more than, less

less than, more

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.