Geometry

ljsoto, 10/9/2025

Geometry

Tabla de Contenidos

  1. Preparing for Geometry
    1. Plotting Points (x,y): Quiz
    2. Absolute Value
    3. Area Of A Triangle
  2. Chapter 1
    1. Exploring Points, Lines, and Planes (V2)
    2. 1.1 Points, Lines, and Planes
    3. Constructing Congruent Segments
    4. Measuring Segments
    5. Segment Addition
    6. Midpoint Coordinate
    7. Distance Formula Practice
    8. Measuring Angles with a Protractor
    9. Angle Addition Postulate
    10. Demo of Construction Steps of Angle Bisector
    11. Complementary and Supplementary Angles
    12. Vertical Angles and Linear Pairs
  3. Chapter 2

1.

Preparing for Geometry

Basic math needed for Geometry

  • 1. Plotting Points (x,y): Quiz
  • 2. Absolute Value
  • 3. Area Of A Triangle

1.1.

Plotting Points (x,y): Quiz

[b][color=#000000]Students:[/color][/b] [b][color=#1e84cc]Repeat this exercise as many times as you need in order to master this concept! [/color][/b]
Quick (Silent) Demo
– Tim Brzezinski

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2.

Chapter 1

Basics of Geometry

  • 1. Exploring Points, Lines, and Planes (V2)
  • 2. 1.1 Points, Lines, and Planes
  • 3. Constructing Congruent Segments
  • 4. Measuring Segments
  • 5. Segment Addition
  • 6. Midpoint Coordinate
  • 7. Distance Formula Practice
  • 8. Measuring Angles with a Protractor
  • 9. Angle Addition Postulate
  • 10. Demo of Construction Steps of Angle Bisector
  • 11. Complementary and Supplementary Angles
  • 12. Vertical Angles and Linear Pairs

2.1.

Exploring Points, Lines, and Planes (V2)

In this app, construct a point and a line. If you experience difficulty using these tools, refer to the quick silent screencast at the bottom of this page.
In the app above, select the MOVE [icon]/images/ggb/toolbar/mode_move.png[/icon] tool. Move the 3 points you see around. [br][br]Without Googling, how would you describe the term "POINT" in your own words?
Without Googling, how would you describe the term "LINE" in your own words?
In the app below, [br][list][*]Use the PLANE THROUGH 3 POINTS tool [icon]/images/ggb/toolbar/mode_planethreepoint.png[/icon] to construct a plane. To do so, select this tool and plot 3 points anywhere you'd like. [/*][*]Press the MOVE tool [icon]/images/ggb/toolbar/mode_move.png[/icon] when finished so you can move this plane around. [/*][/list][br]What do you notice? What do you wonder?
Without Googling, how would you describe the term "PLANE" in your own words?
Quick (silent) reference for those experiencing difficulty plotting points and lines in GeoGebra 3D.
– Tim Brzezinski

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2.9.

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2.10.

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2.11.

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2.12.

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3.

Chapter 2

Reasoning and Proofs


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