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Trigonometric Function Relationships by frikkie81

Trigonometric Function Relationships by frikkie81
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2019-04-23 16:27
AngleTrigonometryGeometric Construction
This example demonstrates the basic relationships of trigonometric functions. By constructing a right triangle, it shows the relationships between sine, cosine, and tangent. GeoGebra commands such as Ray, Segment, and Polygon are used for geometric construction. Suitable for students at the junior high school level and above to learn trigonometric functions.

GeoGebra Commands & Parameters

  1. Ray(B, B_1) → a_1
  2. Point(a_1) → A
  3. Segment(A, B) → c
  4. OrthogonalLine(B, c) → c_2
  5. Point(c_2) → D
  6. Ray(B, D) → d
  7. Point(d) → C
  8. Polygon(C, A, B) → poly1, b, e, a
  9. Angle(B, A, C) → α
  10. Angle(A, C, B) → β
  11. Angle(C, B, A) → γ