1. Chapter 5
5-3 Inequalities in One Triangle 5-4 Indirect proof 5-5 The triangle Inequality 5-6 Inequality in two triangles.

2. Summary (5-1, 5-2)
Summary page 339

3. Inequalities in One Triangle
p. 344
Inequalities in One Triangle

4. Inequalities in One Triangle
Theorem 5.8 page 345
Exterior angle inequality
The measure of an exterior angle of a triangle is greater than the measure of either of its corresponding remote interior angles.
Theorem 5.9 page 346
Theorem 5.10 page 346
Angle-side relationships in triangles
If one side of a triangle is longer than another side, then the angle opposite the longer side has a greater measure than the angle opposite the shorter side.
If one angle of a triangle has a greater measure than another angle, then the side opposite the greater angle is longer than the side opposite the lesser angle.

5. Indirect proof p. 355 Indirect proofs can be used:
To prove algebraic concepts (Example 2 page 356)
In everyday situations (Example 3 page 356)
To prove concepts in number theory (Example 4 page 357)

6. p. 355
Indirect proof
Example 2 page 356. Geometry book.

7. The Triangle Inequality
p. 364
The Triangle Inequality

8. The Triangle Inequality
p. 364
The Triangle Inequality

9. Inequality in Two Triangles
p. 371
Inequality in Two Triangles

10. Classwork/Homework.
From Workbook CW- Skills Practice 5-3 Problems 1-10, Skills Practice 5-4 Problems 1 to 4, Skills Practice 5-5 Problems 1, 2, 9, 10, 17, Skills Practice 5-6 Problems 1 to 4. HW-Practice 5-3 Problems 1 to 12, Practice 5-4 Problems 1 and 2, Practice 5-5 Problems 1 to 12, Practice 5-6 Problems 1 to 4.