Geometry help from MathHelp.com.  Online Geometry tutoring with your own math teacher in every lesson.

Comprehensive Geometry Help with a Personal Math Teacher

Every lesson features video examples, guided practice, interactive self-tests, printable worksheets, and more.

 
Geometry Reviews

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Peter

Search Our Geometry Lessons
Geometry Scope & Sequence
CHAPTER 1: INTRODUCTION 
Unit 1: Algebra Review 001: Addition and Subtraction of Integers
    002: Multiplication and Division of Integers
    003: Equations Involving the Distributive Property
    004: Equations with the Variable on Both Sides
Unit 2: Basic Figures 005: Points, Lines, Planes, and Space
    006: Segments, Rays, and Length
    007: Segment Addition Postulate and Midpoint
    008: Angles and Measure
    009: Angle Addition Postulate and Angle Bisector
Unit 3: Reasoning 010: Inductive vs. Deductive Reasoning
    011: Conditional Statements
Unit 4: Beginning Proofs 012: Properties
    013: Algebra Proofs with Properties
    014: Geometry Proofs with Midpoints and Angle Bisectors
CHAPTER 2: ANGLE PAIRS & PERPENDICULAR LINES 
Unit 1: Algebra Review 015: Solving Systems by Addition
    016: Solving Systems by Substitution and Method of Choice
    017: Factoring Trinomials
    018: Factoring Trinomials and Difference of Two Squares
    019: Polynomial Equations
Unit 2: Angle Pairs 020: Complementary and Supplementary Angles (Part 1)
    021: Complementary and Supplementary Angles (Part 2)
    022: Vertical Angles
Unit 3: Perpendicular Lines 023: Problems Involving Perpendicular Lines
    024: Theorems Involving Perpendicular Lines
CHAPTER 3: PARALLEL LINES AND POLYGONS 
Unit 1: Parallel Lines 025: Vocabulary
    026: Given Lines are Parallel
    027: Proving Lines are Parallel
Unit 2: Angles of a Triangle 028: Vocabulary and Triangle Sum Theorem
    029: Algebra Problems
    030: Word Problems and Exterior Angle Theorem
Unit 3: Polygons 031: Vocabulary
    032: Sum of Interior and Exterior Angles
    033: Regular Polygons
CHAPTER 4: TRIANGLES 
Unit 1: Beginning Concepts 034: Congruent Figures
    035: Proving Triangles are Congruent by SSS, SAS, and ASA
Unit 2: Advanced Concepts 036: Isosceles Triangle Theorems
    037: Proving Triangles are Congruent by AAS and HL
    038: Medians, Altitudes, and Perpendicular Bisectors
CHAPTER 5: QUADRILATERALS 
Unit 1: Parallelograms 039: Properties of Parallelograms
    040: Proving a Quadrilateral is a Parallelogram
    041: More Parallel Line Theorems
Unit 2: Other Quadrilaterals 042: Rectangles, Rhombuses, and Squares
    043: Trapezoids
CHAPTER 6: SIMILARITY 
Unit 1: Ratio and Proportion 044: Ratio
    045: Proportion
Unit 2: Similar Polygons 046: Properties of Similar Polygons
    047: Angle-Angle Similarity Postulate
    048: Word Problems
Unit 3: Theorems 049: SSS and SAS Similarity Theorems
    050: Triangle Proportionality and Triangle Angle-Bisector Theorems
CHAPTER 7: RIGHT TRIANGLES 
Unit 1: Simplifying Radicals 051: Simplifying Square Roots
    052: Multiplying Square Roots
    053: Dividing Square Roots
    054: Adding and Subtracting Square Roots
Unit 2: The Pythagorean Theorem 055: The Pythagorean Theorem
    056: Word Problems
    057: Converse of the Pythagorean Theorem
Unit 3: Special Right Triangles 058: 30-60-90 and 45-45-90 degree Triangles (Part I)
    059: 30-60-90 and 45-45-90 degree Triangles (Part II)
Unit 4: Trigonometry 060: Sine, Cosine, and Tangent (Part I)
    061: Sine, Cosine, and Tangent (Part II)
    062: Word Problems
CHAPTER 8: CIRCLES 
Unit 1: Vocabulary and Tangents 063: Vocabulary
    064: Tangents
Unit 2: Arcs, Central Angles, and Chords 065: Arcs and Central Angles
    066: Beginning Arcs and Chords
    067: Advanced Arcs and Chords
Unit 3: Angles and Segments 068: Inscribed Angles
    069: Angles Formed by Chords, Secants, and Tangents
Unit 4: Segment Lengths 070: Theorems and Beginning Problems
    071: Advanced Problems
CHAPTER 9: AREA 
Unit 1: Area of Rectangles, Squares, and Parallelograms 072: Area of Rectangles and Squares (Part I)
    073: Area of Rectangles and Squares (Part II)
    074: Area of Parallelograms
Unit 2: Area of Triangles, Rhombuses, and Trapezoids 075: Area of Triangles
    076: Area of Rhombuses
    077: Area of Trapezoids
Unit 3: Area of Regular Polygons and Circles 078: Area of Regular Polygons
    079: Area and Circumference of Circles
CHAPTER 10: VOLUME 
Unit 1: Prisms 080: Vocabulary, Formulas, and Right Rectangular Prisms
    081: Advanced Right Prisms
Unit 2: Pyramids 082: Vocabulary, Formulas, and Regular Square Pyramids
    083: Advanced Regular Pyramids
Unit 3: Cylinders, Cones, and Spheres 084: Cylinders and Cones
    085: Spheres

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