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Angle Addition Postulate by David

Angle Addition Postulate by David
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2015-09-15 22:58
AngleGeometric ConstructionSlider Animation
This example helps students find missing angles or the total angle by using the Angle Addition Postulate. It involves the concept of angles and uses commands like Rotate, Angle, and Segment in GeoGebra. Suitable for middle school and above students learning geometry.

GeoGebra Commands & Parameters

  1. Rotate(A, α, B) → C
  2. Angle(A, B, C) → CBA_1
  3. Segment(C, B) → a
  4. Segment(A, B) → b
  5. Rotate(A, DB, B) → D
  6. Angle(A, B, D) → DBA
  7. Segment(D, B) → c
  8. Angle(D, B, C) → CBD