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Holt Geometry: Online Textbook Help

  • Course type: Self-paced
  • Available Lessons: 82
  • Average Lesson Length: 8 min
  • Eligible for Certificate: Yes

    Certificates show that you have completed the course. They do not provide credit.

  • Watch a preview:

    What is Geometry?
    chapter 1 / lesson 1
    What is Geometry?

Course Summary

Supplement what you're learning in your geometry textbooks with our Holt Geometry: Online Textbook Help course. Use these fun video lessons to review some of the more challenging concepts in covered in this textbook and then test your knowledge with our accompanying quizzes.
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11 chapters in Holt Geometry: Online Textbook Help

Week {{::cp.getGoalWeekForTopic(0, 11)}}
Ch 1. Holt Geometry Chapter 1: Exploring Geometry {{cp.topicAssetIdToProgress[21603].percentComplete}}% complete
Course Progress Best Score
Lesson 1 - What is Geometry? Score: {{cp.lessonAssetIdToProgress[14510].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14510].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Line Segments & Rays: Definition & Measurement Score: {{cp.lessonAssetIdToProgress[14011].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14011].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Angles and Triangles: Practice Problems Score: {{cp.lessonAssetIdToProgress[2408].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2408].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - How to Solve Visualizing Geometry Problems Score: {{cp.lessonAssetIdToProgress[173].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[173].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Properties of Concurrent Lines in a Triangle Score: {{cp.lessonAssetIdToProgress[14344].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14344].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Using Position vs. Time Graphs to Describe Motion Score: {{cp.lessonAssetIdToProgress[15061].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15061].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Plotting Points on the Coordinate Plane Score: {{cp.lessonAssetIdToProgress[11292].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11292].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(1, 11)}}
Course Progress Best Score
Lesson 1 - Geometric Proofs: Definition and Format Score: {{cp.lessonAssetIdToProgress[14897].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14897].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Critical Thinking and Logic in Mathematics Score: {{cp.lessonAssetIdToProgress[2372].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2372].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Inductive & Deductive Reasoning in Geometry: Definition & Uses Score: {{cp.lessonAssetIdToProgress[14511].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14511].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Undefined Terms of Geometry: Concepts & Significance Score: {{cp.lessonAssetIdToProgress[14515].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14515].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Types of Angles: Vertical, Corresponding, Alternate Interior & Others Score: {{cp.lessonAssetIdToProgress[2407].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2407].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Properties and Postulates of Geometric Figures Score: {{cp.lessonAssetIdToProgress[14516].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14516].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - The Axiomatic System: Definition & Properties Score: {{cp.lessonAssetIdToProgress[14513].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14513].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Algebraic Laws and Geometric Postulates Score: {{cp.lessonAssetIdToProgress[14517].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14517].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(3, 11)}}
Course Progress Best Score
Lesson 1 - Properties of Congruent and Similar Shapes Score: {{cp.lessonAssetIdToProgress[10603].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10603].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Triangle Congruence Postulates: SAS, ASA & SSS Score: {{cp.lessonAssetIdToProgress[14433].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14433].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Congruency of Right Triangles: Definition of LA and LL Theorems Score: {{cp.lessonAssetIdToProgress[14441].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14441].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Congruency of Isosceles Triangles: Proving the Theorem Score: {{cp.lessonAssetIdToProgress[14442].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14442].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Congruence Proofs: Corresponding Parts of Congruent Triangles Score: {{cp.lessonAssetIdToProgress[14434].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14434].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Applications of Similar Triangles Score: {{cp.lessonAssetIdToProgress[2405].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2405].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Geometric Proofs for Polygons Score: {{cp.lessonAssetIdToProgress[14508].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14508].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Parallelograms: Definition, Properties, and Proof Theorems Score: {{cp.lessonAssetIdToProgress[13444].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13444].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Geometric Constructions Using Lines and Angles Score: {{cp.lessonAssetIdToProgress[14012].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14012].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Constructing Triangles: Types of Geometric Construction Score: {{cp.lessonAssetIdToProgress[14343].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14343].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Constructing an Angle Bisector in Geometry Score: {{cp.lessonAssetIdToProgress[14015].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14015].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - Constructing Perpendicular Lines in Geometry Score: {{cp.lessonAssetIdToProgress[14014].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14014].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - Transformations: How to Shift Graphs on a Plane Score: {{cp.lessonAssetIdToProgress[649].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[649].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(4, 11)}}
Course Progress Best Score
Lesson 1 - Perimeter of Triangles and Rectangles Score: {{cp.lessonAssetIdToProgress[2401].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2401].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Finding the Perimeter of Polygons Score: {{cp.lessonAssetIdToProgress[13753].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13753].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Perimeter of Quadrilaterals and Irregular or Combined Shapes Score: {{cp.lessonAssetIdToProgress[10608].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10608].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Area of Triangles and Rectangles Score: {{cp.lessonAssetIdToProgress[2402].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2402].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Measuring the Area of a Parallelogram: Formula & Examples Score: {{cp.lessonAssetIdToProgress[13445].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13445].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Measuring the Area of a Trapezoid Score: {{cp.lessonAssetIdToProgress[13453].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13453].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Circles: Area and Circumference Score: {{cp.lessonAssetIdToProgress[8563].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8563].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Pythagorean Theorem: Definition & Example Score: {{cp.lessonAssetIdToProgress[15238].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15238].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Special Right Triangles: Types and Properties Score: {{cp.lessonAssetIdToProgress[14201].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14201].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Measuring the Area of Regular Polygons: Formula & Examples Score: {{cp.lessonAssetIdToProgress[13680].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13680].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Distance Formulas: Calculations & Examples Score: {{cp.lessonAssetIdToProgress[15581].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15581].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(6, 11)}}
Course Progress Best Score
Lesson 1 - How to Calculate the Volumes of Basic Shapes Score: {{cp.lessonAssetIdToProgress[174].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[174].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - How to Find Surface Area of a Cylinder Score: {{cp.lessonAssetIdToProgress[20069].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20069].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - How to Find Surface Area of a Cube and a Rectangular Prism Score: {{cp.lessonAssetIdToProgress[20068].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20068].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - How to Find Surface Area of a Pyramid Score: {{cp.lessonAssetIdToProgress[20070].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20070].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Prisms: Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13833].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13833].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Pyramids: Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13834].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13834].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - What Are Cylinders? - Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13835].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13835].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Cones: Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13836].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13836].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Spheres: Definition, Area & Volume Score: {{cp.lessonAssetIdToProgress[13837].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13837].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(7, 11)}}
Course Progress Best Score
Lesson 1 - Similar Polygons: Definition and Examples Score: {{cp.lessonAssetIdToProgress[14097].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14097].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - How to Identify Similar Triangles Score: {{cp.lessonAssetIdToProgress[2404].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2404].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Triangle Proportionality Theorem Score: {{cp.lessonAssetIdToProgress[14099].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14099].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - The AAS (Angle-Angle-Side) Theorem: Proof and Examples Score: {{cp.lessonAssetIdToProgress[14436].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14436].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - The HL (Hypotenuse Leg) Theorem: Definition, Proof, & Examples Score: {{cp.lessonAssetIdToProgress[14438].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14438].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - The HA (Hypotenuse Angle) Theorem: Proof, Explanation, & Examples Score: {{cp.lessonAssetIdToProgress[14437].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14437].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Applying Scale Factors to Perimeter, Area, and Volume of Similar Figures Score: {{cp.lessonAssetIdToProgress[10604].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10604].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(8, 11)}}
Course Progress Best Score
Lesson 1 - Properties of Shapes: Circles Score: {{cp.lessonAssetIdToProgress[13293].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13293].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Tangent of a Circle: Definition & Theorems Score: {{cp.lessonAssetIdToProgress[13864].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13864].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Central and Inscribed Angles: Definitions and Examples Score: {{cp.lessonAssetIdToProgress[13861].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13861].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Measure of an Arc: Process & Practice Score: {{cp.lessonAssetIdToProgress[13862].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13862].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Measurements of Angles Involving Tangents, Chords & Secants Score: {{cp.lessonAssetIdToProgress[13865].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13865].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Measurements of Lengths Involving Tangents, Chords and Secants Score: {{cp.lessonAssetIdToProgress[14376].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14376].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Graphing Circles: Identifying the Formula, Center and Radius Score: {{cp.lessonAssetIdToProgress[3420].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3420].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(9, 11)}}
Week {{::cp.getGoalWeekForTopic(10, 11)}}
Course Progress Best Score
Lesson 1 - Propositions, Truth Values and Truth Tables Score: {{cp.lessonAssetIdToProgress[2373].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2373].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Logical Fallacies: Hasty Generalization, Circular Reasoning, False Cause & Limited Choice Score: {{cp.lessonAssetIdToProgress[2422].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2422].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Logical Math Connectors: Conjunctions and Disjunctions Score: {{cp.lessonAssetIdToProgress[2374].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2374].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Conditional Statements in Math Score: {{cp.lessonAssetIdToProgress[2375].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2375].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - The Parallel Postulate: Definition & Examples Score: {{cp.lessonAssetIdToProgress[13675].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13675].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Programming Logic & Syntax: The Programming Toolbox Score: {{cp.lessonAssetIdToProgress[2653].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2653].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Boolean Logic, Operators & Expressions Score: {{cp.lessonAssetIdToProgress[14069].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14069].bestScoreQuestions}}  Take Quiz Optional

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