Hello. I have a question about the proper terminology and algebraic communication involved in line segments within circles. I am okay at mathematics but I have never had any training on WRITING math.


Questions on algebraic language

1. Imagine you have a circle and there is a line segment within the circle but the line segment does not touch the circle itself and it is not related to anything outside of the circle. What is the proper algebraic expression for the segment and how it relates to the circle? You know, a set of points that are in the circle, etc. In addition, how would you state this scenerio mathematically for the specific case where the segment passes through the circle's center?

2. How would you write (1) for multiple segments, especially for ones that all cross through the circle's center?

3. Would it be better to state the segments as segments e.g. PQ or as vectors?




Questions on terminology

1. Is "uniform curve" a proper term for a circle? Can it be used to describe a circle?

2. Can a line segment within a circle be called a convex hull?

3. If two line segments within a circle both pass through the circle's center (so they share a point) can the circle's center be called a convex combination of the two line segments and/or their end points?



Thanks to all who answer.