### Chapter 1. Tools of Geometry

#### 1-1. Patterns and Inductive Reasoning

Finding Patterns

#### 1-2. Points, Lines, and Planes

Investigating Parallel Lines and Planes

#### 1-3. Segments, Rays, Parallel Lines and Planes

Investigating Parallel Lines and Planes

#### 1-5. Basic Constructions

Construct Parallel and Perpendicular Lines

Constructing Congruent Segments and Angles

#### 1-6. The Coordinate Plane

Points in the Coordinate Plane - Activity A

#### 1-7. Perimeter, Circumference and Area

Circle: Perimeter, Circumference and Area

Rectangle: Perimeter, Circumference and Area

### Chapter 2. Reasoning and Proof

#### 2-1. Conditional Statements

Conditional Statement

#### 2-2. Biconditionals and Definitions

Biconditional Statement

#### 2-5. Proving Angles Congruent

Investigating Angle Theorems - Activity B

### Chapter 3. Parallel and Perpendicular Lines

#### 3-3. Parallel Lines and the Triangle Angle-Sum Theorem

Triangle Angle Sum - Activity B

#### 3-4. The Polygon Angle-Sum Theorems

Polygon Angle Sum - Activity A

#### 3-5. Lines in the Coordinate Plane

Slope-Intercept Form of a Line - Activity B

Point-Slope Form of a Line - Activity A

Standard Form of a Line

#### 3-7. Constructing Parallel and Perpendicular Lines

Construct Parallel and Perpendicular Lines

### Chapter 4. Congruent Triangles

#### 4-2. Triangle Congruence by SSS and SAS

Proving Triangles Congruent

#### 4-3. Triangle Congruence by ASA and AAS

Proving Triangles Congruent

#### 4-5. Isosceles and Equilateral Triangles

Isosceles and Equilateral Triangles

#### 4-6. Congruence in Right Triangles

Congruence in Right Triangles

### Chapter 5. Relationships Within Triangles

#### 5-2. Bisectors in Triangles

Bisectors in Triangles

#### 5-3. Concurrent Lines, Medians, and Altitudes

Concurrent Lines, Medians, and Altitudes

#### 5-4. Inverses, Contrapositives, and Indirect Reasoning

Concurrent Lines, Medians, and Altitudes

### Chapter 6. Quadrilaterals

#### 6-1. Classifying Quadrilaterals

Classifying Quadrilaterals - Activity B

#### 6-3. Proving That a Quadrilateral is a Parallelogram

Parallelogram Conditions

#### 6-4. Special Parallelograms

Special Quadrilaterals

#### 6-6. Placing Figures in the Coordinate Plane

Points in the Coordinate Plane - Activity B

### Chapter 7. Area

#### 7-1. Areas of Parallelograms and Triangles

Area of Parallelograms - Activity B

#### 7-2. The Pythagorean Theorem and Its Converse

Pythagorean Theorem - Activity B

#### 7-6. Circles and Arcs

Chords and Arcs

#### 7-7. Areas of Circles and Sectors

Circle: Perimeter, Circumference and Area

#### 7-8. Geometric Probability

Geometric Probability - Activity A

### Chapter 8. Similarity

#### 8-1. Ratios and Proportions

Part:Part and Part:Whole Ratios

#### 8-4. Similarity in Right Triangles

Similarity in Right Triangles

### Chapter 9. Right Triangle Trigonometry

#### 9-1. The Tangent Ratio

Sine, Cosine and Tangent

#### 9-2. Sine and Cosine Ratios

Sine, Cosine and Tangent

Sine and Cosine Ratios - Activity A

#### 9-4. Vectors

Adding Vectors

### Chapter 10. Surface Area and Volume

#### 10-2. Space Figures and Drawings

3D and Orthographic Views - Activity B

#### 10-3. Surface Areas and Prisms and Cylinders

Surface and Lateral Area of Prisms and Cylinders

#### 10-4. Surface Areas of Pyramids and Cones

Surface and Lateral Area of Pyramids and Cones

#### 10-5. Volumes of Prisms and Cylinders

Prisms and Cylinders

#### 10-6. Volumes of Pyramids and Cones

Pyramids and Cones - Activity B

### Chapter 11. Circles

#### 11-2. Chords and Arcs

Chords and Arcs

#### 11-3. Inscribed Angles

Inscribing Angles

#### 11-5. Circles in the Coordinate Plane

Circles

### Chapter 12. Transformations

#### 12-1. Reflections

Reflections

#### 12-2. Translations

Translations

#### 12-3. Rotations

Rotations, Reflections and Translations

#### 12-7. Dilations

Dilations