Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Interesting Stuff (Mostly Geometry)
    1. Lee Sallow's Triplets
    2. All triangles are isosceles - false assumptions
    3. Elegant Geometry Proof
    4. Rotating Equilateral Triangle
    5. Dancing Points on Regular Polygons
    6. Out of Phase Orbits
    7. ptolemy's theorems

Interesting Stuff (Mostly Geometry)

Author:Chip Rollinson
Topic:Geometry

  • Lee Sallow's Triplets

  • All triangles are isosceles - false assumptions

  • Elegant Geometry Proof

  • Rotating Equilateral Triangle

  • Dancing Points on Regular Polygons

  • Out of Phase Orbits

  • ptolemy's theorems

Next
Lee Sallow's Triplets

New Resources

  • Slope and Road Signs
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • Viviani's Curve
  • ¿Quién llegará más lejos en el mundial?
  • Model sferyczny - dwunastościan-dwudziestościan

Discover Resources

  • Bride
  • saveas
  • Equivalent fractions (ver 1)
  • Center of Curvature
  • ASA rules of congruency

Discover Topics

  • Isosceles Triangles
  • Geometric Distribution
  • Fractal Geometry
  • Trigonometric Functions
  • Perimeter
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®