GeoGebra
  • Home
  • News Feed
  • Resources
  • Profile
  • People
  • Groups
  • App Downloads
About GeoGebra
Contact us: office@geogebra.org
Terms of Service – Privacy – License
Language: English

© 2018 GeoGebra

GeoGebra

Morley's Trisector Theorem

Author:
meghanott, Albert Navetta
Morley's trisector theorem states that in any triangle, the three points of intersection of the adjacent angle trisectors form an equilateral triangle, called the first Morley triangle or simply the Morley triangle. No proof provided here, just a graphic. Drag any of the points around to observe that it is true for any triangle. For more information and proofs, see http://en.wikipedia.org/wiki/Morley%27s_trisector_theorem.
GeoGebra Applet

New Resources

  • MirroredCutLayouts1138
  • Work _Energy Lab
  • DYME 4.3
  • Find the formula
  • Linear transformation (with image of a vector u)

Discover Resources

  • AQR Section 18 Exercise 44: NBA or WNBA?
  • Coxeter's Kaleidoscopes
  • Distance Formula
  • rig2 rolling
  • combined_transformations

Discover Topics

  • Pyramid
  • Pie Chart or Circle Chart
  • Scalene Triangles
  • Geometric Mean
  • Natural Numbers

GeoGebra

  • About
  • Team
  • News Feed
  • Partners

Apps

  • Graphing Calculator
  • Geometry
  • 3D Graphing
  • App Downloads

Resources

  • Classroom Resources
  • Groups
  • Tutorials
  • Help
  • Language: English
  • Terms of Service Privacy License
  • Facebook Twitter YouTube