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Sine, Cosine, and Tangent of a Right Triangle

Sine, Cosine, and Tangent of a Right Triangle
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2017-01-27 06:54
AngleTrigonometryGeometric Construction
This example demonstrates the concepts of sine, cosine, and tangent in a right triangle. Using GeoGebra commands such as Segment, Rotate, Angle, etc., it dynamically illustrates the definitions and properties of trigonometric functions. Suitable for students at the junior high school level and above to learn the basic concepts of trigonometric functions.

GeoGebra Commands & Parameters

  1. Segment(A, C) → f
  2. Rotate(C, α_1, A) → B'
  3. Angle(C, A, B') → α
  4. Line(A, B') → g
  5. OrthogonalLine(C, f) → h
  6. Intersect(g, h) → B
  7. Polygon(A, C, B) → poly1, b, a, c
  8. Angle(A, B, C) → β