Which line is defined as connecting any two points on a circle?

A chord is defined as a line segment that connects any two points on a circle. This means that, regardless of where the endpoints are positioned on the circumference, as long as they are part of the circle, the line segment formed between them is classified as a chord.

In context, a secant is a line that intersects a circle at two points, but it extends infinitely in both directions, whereas a chord is limited to just the segment within the circle. A diameter is a special type of chord that passes through the center of the circle and is the longest possible chord, not applicable to all chord scenarios. A tangent, on the other hand, only touches the circle at one point and does not connect two points on the circle. Thus, the most accurate definition for the line segment that connects any two points on the circle is indeed a chord.