### 8: Transformations

#### 8.1: Reflections

Absolute Value with Linear Functions

Holiday Snowflake Designer

Reflections

Rotations, Reflections, and Translations

#### 8.2: Rotations

Rotations, Reflections, and Translations

Similar Figures

### 9: Connecting Algebra and Geometry

#### 9.2: Areas of Parallelograms and Triangles

Area of Parallelograms

Area of Triangles

Perimeter and Area of Rectangles

Perimeters and Areas of Similar Figures

### 10: Reasoning and Proof

#### 10.1: Basic Constructions

Segment and Angle Bisectors

#### 10.3: Conditional Statements

Biconditional Statements

Conditional Statements

#### 10.4: Biconditionals and Definitions

Biconditional Statements

Conditional Statements

### 11: Proving Theorems About Lines and Angles

#### 11.1: Lines and Angles

Slope

#### 11.2: Properties of Parallel Lines

Constructing Congruent Segments and Angles

Constructing Parallel and Perpendicular Lines

Parallel, Intersecting, and Skew Lines

#### 11.4: Parallel and Perpendicular Lines

Constructing Congruent Segments and Angles

Constructing Parallel and Perpendicular Lines

Parallel, Intersecting, and Skew Lines

#### 11.6: Constructing Parallel and Perpendicular Lines

Constructing Congruent Segments and Angles

Constructing Parallel and Perpendicular Lines

Parallel, Intersecting, and Skew Lines

### 12: Congruent Triangles

#### 12.1: Congruent Figures

Constructing Congruent Segments and Angles

#### 12.2: Triangle Congruence by SSS and SAS

Congruence in Right Triangles

Constructing Congruent Segments and Angles

Proving Triangles Congruent

#### 12.3: Triangle Congruence by ASA and AAS

Congruence in Right Triangles

Constructing Congruent Segments and Angles

Proving Triangles Congruent

#### 12.4: Using Corresponding Parts of Congruent Triangles

Congruence in Right Triangles

Proving Triangles Congruent

Similar Figures

#### 12.5: Isosceles and Equilateral Triangles

Classifying Triangles

Concurrent Lines, Medians, and Altitudes

Isosceles and Equilateral Triangles

Triangle Inequalities

#### 12.6: Congruence in Right Triangles

Congruence in Right Triangles

Proving Triangles Congruent

#### 12.7: Congruence in Overlapping Triangles

Congruence in Right Triangles

Constructing Congruent Segments and Angles

Proving Triangles Congruent

#### 12.8: Congruence Transformations

Dilations

Reflections

Rotations, Reflections, and Translations

Translations

### 13: Proving Theorems About Triangles

#### 13.2: Perpendicular and Angle Bisectors

Concurrent Lines, Medians, and Altitudes

Constructing Parallel and Perpendicular Lines

Segment and Angle Bisectors

#### 13.3: Bisectors in Triangles

Concurrent Lines, Medians, and Altitudes

#### 13.4: Medians and Altitudes

Concurrent Lines, Medians, and Altitudes

Similarity in Right Triangles

#### 13.6: Inequalities in One Triangle

Triangle Inequalities

#### 13.7: Inequalities in Two Triangles

Triangle Inequalities

### 14: Proving Theorems About Quadrilaterals

#### 14.1: The Polygon Angle-Sum Theorems

Polygon Angle Sum

Triangle Angle Sum

#### 14.2: Properties of Parallelograms

Classifying Quadrilaterals

Parallelogram Conditions

Special Parallelograms

#### 14.3: Proving That a Quadrilateral is a Parallelogram

Parallelogram Conditions

Special Parallelograms

#### 14.4: Properties of Rhombuses, Rectangles, and Squares

Classifying Quadrilaterals

Perimeter and Area of Rectangles

Special Parallelograms

#### 14.5: Conditions for Rhombuses, Rectangles, and Squares

Area of Parallelograms

Classifying Quadrilaterals

Perimeter and Area of Rectangles

Special Parallelograms

Square Roots

#### 14.6: Trapezoids and Kites

Classifying Quadrilaterals