In Exercises 1-4, identify the segment
bisector of RS.
Then find RS. (See Example 1.)

The point M is the bisector of the line RS
A bisector is a point or line that divides another line or segment into two equal parts
A line is the shortest distance between two points. From the line given, there are 3 points on the line which are R, M and S. Since the point M is located in the middle of RS, hence the point M is the bisector of the line RS
Learn more on bisector here: https://brainly.com/question/11006922
#SPJ1