Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Parallel Lines and Angles Problem
    1. Proving Theorems
    2. Applying Theorems

    Parallel Lines and Angles Problem

    Author:Aaron Dankman
    Topic:Angles
    Review, exercises, and a fun challenge related to some angle theorems
    Parallel Lines and Angles Problem

    Table of Contents

    • Proving Theorems

      • Defining Congruence
      • Proving Congruence
      • Proof: Vertical Angles Theorem
      • Proof: Corresponding Angles Theorem
      • Fun!
      • Prove Angle Congruence
    • Applying Theorems

      • Part 1: Observe and Conjecture
      • Part 2: Investigate
      • Part 3: Prove
    Next
    Defining Congruence

    New Resources

    • Nikmati Keunggulan Di Bandar Judi Terpercaya
    • Reflection = 180° Rotation about a Line
    • Reflection Across 2 Parallel Lines
    • Equation of Locus - Parabola
    • z`]]

    Discover Resources

    • Week 15 Writing Problem Diagram Geometry
    • Modul 15_Vektor_Soemartini_SMPN 4 Malang
    • wave motion and eqn
    • Three equilateral triangles

    Discover Topics

    • Linear Regression
    • Limits
    • Arithmetic Operations
    • Geometric Transformations
    • Cone
    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®