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Golden Ratio

Author:tkl

New Resources

  • Reflection = 180° Rotation about a Line
  • Making New Year's resolutions for 2026
  • Exploring GeoGebra for the First Time
  • Volume by Disk/Washer around y
  • Volume by Shells Around y

Discover Resources

  • Metric Spaces: R^2 with the Jungle River Metric
  • Key for Transformations 8
  • IM2 How many congruent triangles?
  • Tetris Tools
  • Tessellation Two Step One

Discover Topics

  • Isosceles Triangles
  • Functions
  • Trapezoid
  • Matrices
  • Linear Programming or Linear Optimization
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