Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Geometry: Introductory Definitions
    1. Interactive Definition Prompts

    Geometry: Introductory Definitions

    Author:Jerry Gallaher, Tim Brzezinski
    Topic:Geometry

    Interactive Definition Prompts

    • Collinear Points (Definition Prompt)

    • Parallel Lines Definition

    • Congruent Segments: Quick Exploration

    • Midpoint Definition

    • Congruent Angles: Definition

    • Angle Bisector Definition (I)

    • Perpendicular Lines Definition (& Consequence)

    • Segment Bisectors (Definitions)

    • Perpendicular Bisector Definition

    • Perpendicular Bisector Definition

    • Complementary Angles Meaning

    • Supplementary Angles Meaning

    Next
    Collinear Points (Definition Prompt)

    New Resources

    • Circle Passing Through 3 Points
    • Exploring GeoGebra for the First Time
    • Equation of Locus - Parabola
    • Making New Year's resolutions for 2026
    • အခြေခံ data အခေါ်အဝေါ်များ

    Discover Resources

    • Circle (Basics, Area, Circumference, Properties)
    • JST17 3. 1a Completing the square and graphs
    • Dijkstra #1
    • Quadratics Day 10- Symmetry of Zeros by Completing the Sq
    • Integral como área

    Discover Topics

    • Volume
    • Curve Sketching
    • Distributions
    • Isosceles Triangles
    • Special Points
    AboutPartnersHelp Center
    Terms of ServicePrivacyLicense
    Graphing CalculatorCalculator SuiteCommunity Resources

    Download our apps here:

    Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

    © 2026 GeoGebra®