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The Unit Circle by Norm Prokup

The Unit Circle by Norm Prokup
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2016-06-17 07:15
CircleAngleCoordinate Geometry
This example demonstrates the properties of the unit circle. Key mathematical concepts include the definition of a circle and the relationship between angles and radians. Using GeoGebra commands such as Circle, Point, Rotate, etc., it dynamically shows the points on the unit circle and their angle relationships. Suitable for high school mathematics education and learning.

GeoGebra Commands & Parameters

  1. Circle(A, B) → c
  2. Point(h) → D
  3. Point(g) → E
  4. CurveCartesian((x(E) * cos(t)), (y(D) * sin(t)), t, 0, (2 * π)) → a
  5. Rotate(B, γ, A) → B'
  6. Angle(B, A, B') → α
  7. Textfield(γ) → InputBox1
  8. Rotate(B, γ, A) → B'_1
  9. Segment(A, B') → f
  10. Angle(B, A, B') → β
  11. Ray(A, B') → i
  12. Intersect(i, a) → C, F, G