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Identifying Trig Ratios: Quick Formative Assessment

Identifying Trig Ratios: Quick Formative Assessment
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2019-02-02 00:48
TriangleCircleAngleTrigonometryGeometric Construction
In collections Geometry Review
This example demonstrates how to quickly generate trigonometric ratio assessment questions using GeoGebra. The key mathematical concepts involved include trigonometry, geometric construction, and right triangles. Construction involves using commands like Random, Segment, Semicircle, Rotate, and objects such as points A, B, C. It is suitable for middle or high school mathematics classrooms to facilitate quick assessment creation and practice.

GeoGebra Commands & Parameters

  1. Random(5, 10) → d
  2. Segment(B, A) → h
  3. Semicircle(A, B) → c
  4. Rotate(B, (Random[30, 150] * π / 180), Midpoint[A, B]) → B'_2
  5. Segment(A, B'_2) → f
  6. Random(30, 150) → a
  7. Segment(B'_2, B) → g
  8. Random(1, 6) → n
  9. Element(L_1, n) → text1
  10. Textfield(b) → InputBox1
  11. Polygon(A, B'_2, B) → t1, b_1, a_1, b'_2
  12. Angle(A, B'_2, B) → α
  13. Angle(B'_2, B, A) → β
  14. Angle(B, A, B'_2) → γ