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Angle-Angle

Angle-Angle
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2016-03-14 03:24
TriangleAngleGeometric Construction
In collections Triangle Congruence Activity
This example demonstrates constructing a triangle using the Angle-Angle method. Key mathematical concepts include properties of triangles and angle measurement. It uses GeoGebra commands such as Rotate, Ray, Point, Intersect, Angle, and Segment. Suitable for middle school and above students to learn triangle construction and geometric drawing.

GeoGebra Commands & Parameters

  1. Rotate(N, -65*°, O) → N'
  2. Ray(O, N') → s
  3. Point(s) → Q
  4. Rotate(O, 50*°, N) → O'
  5. Ray(N, O') → r
  6. Intersect(s, r) → R
  7. Point(r) → P
  8. Angle(O, N, O') → ε
  9. Angle(N', O, N) → ζ
  10. Segment(N, P) → t
  11. Segment(O, Q) → a_1
  12. If(Distance[P, Q] < 0.05, Polygon[O, R, N]) → poly4
  13. Segment(N, O) → b_1