1. 1.2 – Use Segments and Congruence
Geometry

2. Learning Target
By the end of today’s lesson we will be able to successfully use segment postulates to identify congruent segments.

3. Vocabulary Postulate / Axiom: Theorem:
A rule that is accepted without proof
Theorem:
A rule that can be proved

4. Vocabulary Distance “Ruler Postulate”: Congruent:
Distance between two Points.
Congruent:
Things that have the same shape
Different than length!

5. Measure the length of to the nearest tenth of a centimeter.

6. When three points are collinear, you can say that one point is BETWEEN the other two.

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

8. Use the diagram to find KL

9. Use the diagram to find QS and PQ.

10. Point A is between M and T on
Point A is between M and T on Use the given information to write an equation in terms of x. Then, solve the equation.
MA = 4x + 9 AT = x – 5 MT = 34

11. Line segments that have the same length are called
CONGRUENT SEGMENTS.

12. Plot F(4, 5), G(–l, 5),
H(3, 3), and J(3, –2) on the coordinate plane. Then determine whether
and are congruent.

13. Plot A(–2, –1), B(4, –1), C(3, 0), and D(3, 5) on the coordinate plane
Plot A(–2, –1), B(4, –1), C(3, 0), and D(3, 5) on the coordinate plane. Then determine if
and are congruent.

14. Learning Target
By the end of today’s lesson we will be able to successfully use segment postulates to identify congruent segments.

15. 1.2 Homework
1.2 Book Worksheet

16. The locations shown lie in a straight line
The locations shown lie in a straight line. Find the distance from the starting point to the destination.