Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Poncelet-Steiner Theorem
    1. Thales' Theorem
    2. Ceva's Theorem
    3. Lemma 1
    4. Lemma 2
    5. Lemma 3
    6. Lemma 4
    7. Lemma 5
    8. Lemmas 1-5 and Basic Problems I-III

    Poncelet-Steiner Theorem

    Author:Kristen
    Poncelet-Steiner Theorem: All constructions possible with a straightedge and compass are possible with a straightedge alone given a circle and its center.
    Poncelet-Steiner Theorem

    Table of Contents

    • Thales' Theorem

      • Thales' Theorem
    • Ceva's Theorem

      • Ceva's Theorem
    • Lemma 1

      • Lemma 1- Parallel Lines
    • Lemma 2

      • Lemma 2- Perpendicular Lines
    • Lemma 3

      • Lemma 3- Transferring a Length in a Given Direction
    • Lemma 4

      • Lemma 4- The Fourth Proportional
    • Lemma 5

      • Lemma 5- Square Roots
    • Lemmas 1-5 and Basic Problems I-III

      • Lemmas 1-5 and Basic Problems I-III
    Next
    Thales' Theorem

    New Resources

    • Function Art Competition (SEAMEO)
    • Linear Approximations
    • Step-By-Step Rationalization
    • z`]]
    • Triangle Flexer

    Discover Resources

    • Differentiation from 1st principles
    • tirequadiff
    • inscribed angles
    • Lines Cut By Transversal
    • AM 2011 P2 Q9
    • Sketching polar curves: Cardioid

    Discover Topics

    • Exponent
    • Cube
    • Conic Sections
    • Derivative
    • Right Triangles
    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®