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Irina Boyadzhiev, Mar 12, 2017


  • 1. Double Box-lid (Mouhefanggai 牟合方蓋) as Intersection of 2 Cylinders
  • 2. Adding Fractions - Visual
  • 3. Relative velocity: Boat problem
  • 4. Wave Interference and Beat Frequency
  • 5. El reto de los cuatro colores
  • 6. Creating Nets of the Cube
  • 7. Kaleidoscope
  • 8. climbing
  • 9. Factorization - Visual illustration of divisor pairs
  • 10. Solution of a sliding-block puzzle
  • 11. Triangle Tessellation
  • 12. Making a cone
  • 13. Fun with spline
  • 14. Falling
  • 15. Rotational Symmetry order 4 (make your own)
  • 16. GoGeometry Action 11!
  • 17. Explore the Area of a Circle
  • 18. 3 Golden Rectangles Surprise!
  • 19. Dynamic Coordinates Demo (drag polygon)

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Double Box-lid (Mouhefanggai 牟合方蓋) as Intersection of 2 Cylinders

– Anthony OR 柯志明

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