1. Chapter 1 Section 2 Measuring and Constructing Segments
Geometry
Chapter 1 Section 2
Measuring and Constructing Segments

2. Objective You will learn to use the Ruler Postulate,
… Copy and compare Segments for congruence,
… Use the Segment Addition Postulate.

3. Vocabulary Postulate/ Axiom
A rule in Geometry that is accepted without proof.
The real number value that corresponds to the point. S T 5 6
Coordinate
The distance between points. It is the Absolute difference between the 2 values of the coordinates. Y Z 7 15
Distance

4. Construction
A geometric drawing that uses a limited set of tools, usually a compass and straightedge.
Congruent Segments
Segments that have the same length.
When 3 points are collinear then one of the points is between the other 2.
Between

5. Vocabulary Postulate/ Axiom
A rule in Geometry that is accepted without proof.
The real number value that corresponds to the point. S T 5 6
Coordinate
The distance between points. It is the Absolute difference between the 2 values of the coordinates. Y Z 7 15
Distance

6. Ruler Postulate
The distance between the points A and B, written AB, is the absolute of the difference of the Coordinates A and B.

7. Segment Addition Postulate
If B is between A and C, then AB + BC = AC.
If AB + BC = AC, then B is between A and C.

8. Homework
Page 16
1, 2-28 ev, 32, 34, 38-45