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JRLeon Discovering Geometry Chapter HGSH

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1 JRLeon Discovering Geometry Chapter 4.5 -4.6 HGSH
C H A P T E R 4 O B J E C T I V E S Discover and explain sums of the measures of two and three interior angles of a triangle Discover properties of the base angles and the vertex angle bisector in isosceles triangles Discover inequalities among sides and angles in triangles Investigate SSS, SAS, SSA, ASA, SAA, and AAA as potential shortcuts to proving triangle congruence Show that pairs of angles or pairs of sides are congruent by identifying related triangles and proving them congruent, then applying CPCTC Create flowchart proofs Review algebraic properties and methods for solving linear equations Develop logical and visual thinking skills Develop inductive reasoning, problem solving skills, and cooperative behavior Practice using geometry tools JRLeon Discovering Geometry Chapter HGSH

2 JRLeon Discovering Geometry Chapter 4.5 HGSH

3 JRLeon Discovering Geometry Chapter 4.4 HGSH
ASA JRLeon Discovering Geometry Chapter HGSH

4 JRLeon Discovering Geometry Chapter 4.5 HGSH
AAS or SAA JRLeon Discovering Geometry Chapter HGSH

5 JRLeon Discovering Geometry Chapter 4.5 HGSH
AAA JRLeon Discovering Geometry Chapter HGSH

6 JRLeon Discovering Geometry Chapter 4.5 HGSH

7 JRLeon Discovering Geometry Chapter 4.6 HGSH
If you use a congruence shortcut to show that two triangles are congruent, then you can use CPCTC to show that any of their corresponding parts are congruent. JRLeon Discovering Geometry Chapter HGSH

8 JRLeon Discovering Geometry Chapter 4.6 HGSH

9 JRLeon Discovering Geometry Chapter 4.6 HGSH
Homework: 4.5: .pp 229–230, #2-18 Even 4.6: .pp 233–235, #1-10 JRLeon Discovering Geometry Chapter HGSH

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