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

© 2023 GeoGebra

Coxeter- Exercise 2.2.1(i)

Author:
AndrewLyon
Topic:
Geometry
Prove the following theorem: (i) There exist four coplanar lines of which no three are concurrent. Lines a,b,c, and d are coplanar with no three concurrent.

New Resources

  • interior - squares with kufic writing
  • Bibi Khanun entrance gate inside wall - ks
  • Polar Cartesian Grapher with radius
  • Gur Emir minarets - ks
  • One Point of Inflection

Discover Resources

  • Ellipsoid multicolored
  • Unit circle
  • Sum of Exterior Angles demo
  • Three Body Fix Test 1
  • Polygons & Angles

Discover Topics

  • Geometric Distribution
  • Fractions
  • Multiplication
  • Expected Value
  • Derivative

GeoGebra

  • About
  • Partners
  • GeoGebra on Tests
  • News Feed
  • App Downloads

Apps

  • Calculator Suite
  • Graphing Calculator
  • 3D Calculator
  • CAS Calculator
  • Scientific Calculator

Resources

  • Classroom Resources
  • Learn GeoGebra
  • Classroom
  • Geometry
  • Notes
  • Terms of Service Privacy License
  • Facebook Twitter YouTube