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Chapter 11 Rotational Symmetry of Icosahedron

Author:Roger Gemberling, Anthony OR 柯志明
Drag the red points to investigate the rotational symmetry of the icosahedron.

New Resources

  • Sine in Cartesian and Polar Coordinates
  • दुई-ओटा समुहको संयोजन (Union of two sets)
  • Hypocycloids
  • Cosine in Cartesian and Polar Coordinates
  • Involute of the Circle

Discover Resources

  • Parallel Lines & a Transversal
  • The square puzzle game (2)
  • Seth's Dynamic Textbook Design Project
  • เส้นสัมผัสจากจุดไปยังวงกลม
  • กราฟของสมการเชิงเส้นสองตัวแปร

Discover Topics

  • Indefinite Integral
  • Normal Distribution
  • Real Numbers
  • Curve Sketching
  • Trapezoid
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