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Exploring Right Triangle Ratios by Linda Van Groll

Exploring Right Triangle Ratios by Linda Van Groll
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2018-07-12 09:50
AngleTrigonometryGeometric Construction
This example uses GeoGebra to demonstrate the concept of right triangle ratios. Key mathematical concepts include trigonometric functions (sine, cosine, tangent). Using commands like rotation, intersection, and segments, users can visually understand the properties of right triangle ratios. Suitable for middle school and above students learning trigonometry and geometric construction.

GeoGebra Commands & Parameters

  1. Circle((0, 0), r) → o
  2. Center(o) → B
  3. Rotate(Intersect[o, xAxis, 2], θ, B) → A
  4. Intersect(xAxis, Line[A, yAxis]) → C
  5. Segment(B, C) → bc
  6. Segment(A, C) → ac
  7. Segment(A, B) → ab
  8. Angle(C, B, A) → α