



2  (1) 

Patterns and Inductive Reasoning 


3  (7) 

Points, Lines, and Planes 


10  (7) 

Segments and Their Measures 


17  (9) 


25  (1) 

Angles and Their Measures 


26  (8) 

Segment and Angle Bisectors 


34  (10) 

Concept Activity: Folding Bisectors 


33  (9) 


42  (2) 


44  (7) 

Technology Activity: Angles and Intersecting Lines 


43  (8) 

Introduction to Perimeter, Circumference, and Area 


51  (20) 


58  (12) 




70  (1) 


71  (8) 

Definitions and Biconditional Statements 


79  (8) 


87  (9) 

Concept Activity: Logic Puzzle 


86  (9) 


95  (1) 

Reasoning with Properties from Algebra 


96  (6) 

Proving Statements about Segments 


102  (7) 

Proving Statements about Angles 


109  (20) 

Concept Activity: Investigating Complementary Angles 


108  (8) 


116  (12) 

Perpendicular and Parallel Lines 




128  (1) 


129  (7) 

Proof and Perpendicular Lines 


136  (7) 

Concept Activity: Forming a Flow Proof 


135  (8) 

Parallel Lines and Transversals 


143  (7) 

Technology Activity: Parallel Lines and Angles 


142  (7) 


149  (1) 

Proving Lines are Parallel 


150  (7) 

Using Properties of Parallel Lines 


157  (8) 


164  (1) 

Parallel Lines in the Coordinate Plane 


165  (7) 

Perpendicular Lines in the Coordinate Plane 


172  (22) 


178  (14) 




192  (2) 


194  (8) 

Concept Activity: Investigating Angles of Triangles 


193  (9) 


202  (10) 


210  (2) 

Proving Triangles are Congruent: SSS and SAS 


212  (8) 

Concept Activity: Investigating Congruent Triangles 


211  (9) 

Proving Triangles are Congruent: ASA and AAS 


220  (9) 


227  (1) 

Technology Activity: Investigating Triangles and Congruence 


228  (1) 

Using Congruent Triangles 


229  (7) 

Isosceles, Equilateral, and Right Triangles 


236  (7) 

Triangles and Coordinate Proof 


243  (21) 


250  (12) 




262  (2) 

Perpendiculars and Bisectors 


264  (8) 

Concept Activity: Investigating Perpendicular Bisectors 


263  (9) 


272  (7) 

Medians and Altitudes of a Triangle 


279  (8) 


285  (1) 

Technology Activity: Investigating Concurrent Lines 


286  (1) 


287  (8) 

Inequalities in One Triangle 


295  (7) 

Technology Activity: Side Lengths and Angle Measures 


294  (8) 

Indirect Proof and Inequalities in Two Triangles 


302  (20) 


308  (12) 




320  (2) 


322  (8) 

Concept Activity: Classifying Shapes 


321  (9) 

Properties of Parallelograms 


330  (8) 

Technology Activity: Investigating Parallelograms 


329  (9) 

Proving Quadrilaterals are Parallelograms 


338  (9) 


346  (1) 

Rhombuses, Rectangles, and Squares 


347  (9) 


356  (8) 


363  (1) 


364  (8) 

Areas of Triangles and Quadrilaterals 


372  (24) 

Concept Activity: Areas of Quadrilaterals 


371  (9) 


380  (14) 




394  (2) 


396  (8) 

Concept Activity: Motion in a Plane 


395  (9) 


404  (8) 

Concept Activity: Reflections in the Plane 


403  (9) 


412  (9) 

Technology Activity: Investigating Double Reflections 


411  (9) 


420  (1) 


421  (9) 

Glide Reflections and Compositions 


430  (7) 

Concept Activity: Multiple Transformations 


429  (8) 


437  (20) 


444  (12) 




456  (1) 


457  (8) 

Problem Solving in Geometry with Proportions 


465  (8) 


473  (7) 

Concept Activity: Making Conjectures about Similarity 


472  (7) 


479  (1) 


480  (8) 

Proving Triangles are Similar 


488  (10) 


496  (2) 

Proportions and Similar Triangles 


498  (8) 

Technology Activity: Investigating Proportional Segments 


497  (9) 


506  (21) 


513  (1) 

Technology Activity: Exploring Dilations 


514  (12) 

Right Triangles and Trigonometry 




526  (1) 


527  (8) 


535  (8) 

The Converse of the Pythagorean Theorem 


543  (8) 

Technology Activity: Investigating Sides and Angles of Triangles 


542  (7) 


549  (2) 


551  (7) 

Concept Activity: Investigating Special Right Triangles 


550  (8) 


558  (9) 


566  (1) 


567  (6) 


573  (22) 


580  (14) 




594  (1) 


595  (8) 


603  (10) 


613  (8) 

Concept Activity: Investigating Inscribed Angles 


612  (8) 


620  (1) 

Other Angle Relationships in Circles 


621  (8) 

Segment Lengths in Circles 


629  (7) 

Technology Activity: Investigating Segment Lengths 


628  (7) 


635  (1) 


636  (6) 


642  (19) 

Technology Activity: Investigating Points Equidistant from a Point and a Line 


641  (7) 


648  (12) 

Area of Polygons and Circles 




660  (1) 

Angle Measures in Polygons 


661  (8) 

Areas of Regular Polygons 


669  (8) 

Perimeters and Areas of Similar Figures 


677  (6) 

Concept Activity: Area Relationships in Similar Figures 


676  (6) 


682  (1) 

Circumference and Arc Length 


683  (8) 

Technology Activity: Perimeters of Regular Polygons 


690  (1) 

Areas of Circles and Sectors 


691  (8) 


699  (20) 


705  (1) 

Technology Activity: Investigating Experimental Probability 


706  (12) 




718  (1) 


719  (9) 

Surface Area of Prisms and Cylinders 


728  (7) 

Concept Activity: Investigating Surface Area 


727  (8) 

Surface Area of Pyramids and Cones 


735  (8) 


742  (1) 

Volume of Prisms and Cylinders 


743  (9) 

Technology Activity: Minimizing Surface Area 


750  (2) 

Volume of Pyramids and Cones 


752  (7) 

Concept Activity: Investigating Volume 


751  (7) 


758  (1) 

Surface Area and Volume of Spheres 


759  (7) 


766  (17) 


772  (11) 
Student Resources 



783  (20) 

Extra Practice for Chapters 112 


803  (24) 


827  (6) 


833  (8) 

Symbols, Formulas, and Tables 


841  (5) 
Glossary 

846  (12) 
Index 

858  
Selected Answers 

SA1  