1. Length of a Segment
Let A and B be points on a number line, with coordinates a and b. Then the measure of segment AB is

2. Find the measures (lengths) of segment AB, segment BC, and segment AC● ● ●

3. Find the length of segment XY. X is a point at -17 Y is a point at 37

4. Find the length of segment AB A is a point at 43 B is a point at -5

5. Segment Congruence Postulate
If two segments have the same length, the segments are congruent.
If two segments are congruent, then they have the same length.

6. XY = YZ, then ___________
If _________ , then AB = CD

7. What is Segment Addition Postulate?
Segment Addition Postulate (SAP) states that if point B is between point A and point C, then AB + BC = AC. If AB + BC = AC, then B is between A and C. A B C

8. B is between A and C. Find the value of x and the measure of BC if: AB = 3, BC = 4x + 1, AC = 8.

9. Y is between X and Z, find the value of x and the measure of XZ
Y is between X and Z, find the value of x and the measure of XZ. XY = 24, YZ = 3x, XZ = 7x – 4.

10. If M is between L and N and LM = 2, MN = 4x + 6, LN = 32, then find x and MN.

11. If F is between E and G and EF = 26, FG = 5x, EG = 9x –6, find x and EG.

12. If U is between T and V and TU = 2x, UV = 26, TV = 13x -7, find x and TU.