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Unit Circle with Sin Cos Tan

Unit Circle with Sin Cos Tan
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2017-05-16 23:47
CircleTrigonometryGeometric Construction
This example demonstrates the unit circle and the sine, cosine, and tangent functions. It shows the relationship between angles and trigonometric function values. Commands used include Intersect, Point, Circle, Line, Angle, OrthogonalLine, Polygon, and Segment. Suitable for high school math education to help students understand basic trigonometric concepts.

GeoGebra Commands & Parameters

  1. Intersect(xAxis, yAxis) → A
  2. Point(yAxis) → B
  3. Circle(A, B) → c
  4. Intersect(c, xAxis, 2) → C
  5. Line(A, C) → f
  6. Line(C, D) → g
  7. Point(c) → E
  8. Line(A, E) → h
  9. Intersect(g, h) → F
  10. Angle(C, A, E) → α
  11. OrthogonalLine(E, f) → i
  12. Intersect(f, i) → G
  13. Polygon(E, G, A) → poly1, a, e, g_1
  14. Intersect(g, h) → H
  15. Intersect(c, f, 1) → I
  16. Segment(H, I) → j