Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Lesson

Outline

  1. Geometry
    1. Relationships within Triangles
    2. Similarity

    Geometry

    Author:dpearson
    Geometry

    Table of Contents

    • Relationships within Triangles

      • Midsegments of Triangles
      • Perpendicular Bisector Theorem
      • Perpendicular bisectors of a triangle
      • circumcenter
      • Incenter
      • The Median Lines (euclidean)
      • Concurrent Lines in Equilateral Triangles
      • Three Altitudes in a Triangle
      • Three Triangle Heights (altitudes)
      • Triangle Inequality Theorem
    • Similarity

      • Geometric Mean and Application
      • Geometric Mean ratios of a right triangle
      • Ratio and proportion
    Next
    Midsegments of Triangles

    New Resources

    • Writing and Graphing Proportional Relationships (k>0)
    • GeoGebra 3D Modeling Workshop (March 8 2024)
    • Rotating Plane Figures to Form Solids
    • Right Triangle Inscribed in a Semicircle
    • Modifiable Right Triangular Prism

    Discover Resources

    • Gary Polynomial
    • Kikora Trapes oppgave
    • Trig Graph Transformation 4
    • Lempar gelang!
    • Basic 3D plotter

    Discover Topics

    • Scalene Triangles
    • Linear Programming or Linear Optimization
    • Boxplot
    • Integers
    • Straight Lines
    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

    © 2026 GeoGebra®