SOLUTION
We want to know
Which of the following statements must be true based on the diagram below
1. JK is a segment bisector. This is correct because JK bisects segment or line FG
2. JK is a perpendicular bisector. This is also correct because JK bisects line FG at a right-angle at J.
3. J is the vertex of a right angle. This is correct J is the point of a right angle
4. K is the vertex of a right angle. This is false, because it has not been proven true.
5. J is the mid-point of a segment in the diagram. This is true because since JK bisects line FG, point J becomes the mid-point of line FG