How many ways can an arc be tangent to a line and an arc?

An arc can be tangent to a line in one way, where the arc touches the line at a single point. Additionally, an arc can be tangent to another arc in two possible configurations: either the arcs can touch at a single point from the outside or from the inside. Therefore, there are a total of three distinct scenariOS: one tangent to a line and two tangents to another arc.