Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Euclid Book IV 11

Author:Gary Rubinstein
Using a golden ratio to construct a regular pentagon

New Resources

  • Billard V5.2 and V6
  • အခြေခံ data အခေါ်အဝေါ်များ
  • bewijs stelling van Pythagoras
  • Tetrahedron String Art
  • Linear Systems + Relationships Between Coefficients and Solutions

Discover Resources

  • Tesselations
  • my house SD
  • segitiga
  • Constructing a Parallel Line

Discover Topics

  • Cosine
  • Step Functions
  • Mode
  • Bar Chart or Bar Graph
  • Sequences and Series
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®