Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Basic Geometric Ideas
    1. Lines
    2. Angles
    3. Triangles

    Basic Geometric Ideas

    Author:New Orleans Geogebra Institute
    Basic Geometric Ideas

    Table of Contents

    • Lines

      • Slopes and Angles between Lines
      • Working with Midpoints
    • Angles

      • Size of Angle
      • Alternate Interior Angles
      • Alternate Exterior Angles
      • Vertical Angles
    • Triangles

      • Sum of Angles of Triangle
    Next
    Slopes and Angles between Lines

    New Resources

    • BaliDyn
    • Line and Circle Practice
    • 函數的單調性
    • Prism Drawn in 2-Point Perspective
    • seo tool

    Discover Resources

    • Roots of Complex Numbers
    • Angle Bisector
    • vector-valued derivative
    • LaniWang_AngleBisectors

    Discover Topics

    • Sphere
    • Terms
    • Histogram
    • Differential Equation
    • Tangent Function
    AboutPartnersHelp Center
    Terms of ServicePrivacyLicense
    Graphing CalculatorCalculator SuiteMath Resources

    Download our apps here:

    Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

    © 2025 GeoGebra®