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Angles in Degrees and Radians

Angles in Degrees and Radians
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2015-12-01 14:17
AngleVectorCoordinate Geometry
This example demonstrates the conversion between degrees and radians. Key mathematical concepts include the measurement units of angles. Using GeoGebra commands such as Intersect, Circle, Segment, Point, Vector, and Angle, the example constructs the representation of angles in degrees and radians. Suitable for students from middle school and above to learn about angle and radian concepts and their conversions.

GeoGebra Commands & Parameters

  1. Intersect(xAxis, yAxis) → O
  2. Circle(O, Z) → c
  3. Intersect(c, xAxis, 2) → A
  4. Intersect(xAxis, yAxis) → B
  5. Segment(A, B) → a
  6. Intersect(c, yAxis, 2) → C
  7. Point(a) → D
  8. Segment(C, D) → b
  9. Point(c) → E
  10. Segment(E, D) → d
  11. Intersect(c, yAxis, 1) → F
  12. Segment(F, D) → e
  13. Intersect(c, a, 1) → G
  14. Segment(G, D) → f
  15. Point(c) → H
  16. Vector(D, H) → u
  17. Vector(D, G) → v
  18. Angle(v, u) → α