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Right-angled triangles and trigonometry introduction

Author:Mark Willis
Topic:Triangles, Trigonometry

New Resources

  • 繪畫垂直線
  • Squaring a Rectangle (PST Version)
  • Function Art 3D - Flower
  • Writing and Graphing Proportional Relationships (k>0)
  • Perpendicular Lines: Quick Exploration

Discover Resources

  • sin(75) & cos(75) activity
  • true/triangle-perpendiculars-are-collinear-ex255.ggb
  • Truncated Octahedron I Locked
  • Example 1
  • Untitled

Discover Topics

  • Logarithmic Functions
  • LCM and GCD
  • Intersection
  • Polynomial Functions
  • Geometric Mean
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