Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Lesson

Outline

  1. Congruent Triangles
    1. Angles of Triangles

    Congruent Triangles

    Author:Cathy
    Topic:Triangles
    A discovery of congruent triangles and their properties

    Angles of Triangles

    How are the angle measures of a triangle related?

    • Finding Angle Measures

    • Measuring Exterior Angles

    • Classifying Triangles by Sides-part 1

    • Classifying Triangles by Sides-part 2

    • Classifying Triangles by Sides - part 3

    • Classifying Triangles by Angles

    Next
    Finding Angle Measures

    New Resources

    • Graphing Basic and Compound Inequalities
    • Mandelbrot 2
    • Modifiable Right Triangular Prism
    • Laundry Basket
    • Rossler's Attractor

    Discover Resources

    • translation-2
    • Definitionsmængde og værdimængde med sliders
    • haz - hilera
    • Parallelogram Construction
    • LR7-02-CYU2 (Equation of a perpendicular bisector)

    Discover Topics

    • Combinatorics
    • Rectangle
    • Bar Chart or Bar Graph
    • Cube
    • Surface
    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®