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Perpendicular Slopes Investigation

Perpendicular Slopes Investigation
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2020-03-12 04:10
TrigonometryCoordinate GeometryGeometric Construction
This example demonstrates how to explore the relationship between slopes of perpendicular lines in the coordinate plane. Key math concepts include line slopes, perpendicularity, and analytical geometry. It utilizes GeoGebra commands like Line, Intersect, Polygon, Segment, Angle, Slope, FractionText, Denominator, Numerator, OrthogonalLine, and Distance. Suitable for high school students learning analytical geometry to understand the properties and proofs of perpendicular line slopes.

GeoGebra Commands & Parameters

  1. Line(A, B) → f
  2. Intersect(g_2, h) → C
  3. Polygon(A, C, B) → poly1, b, a, c
  4. Segment(A, C) → i
  5. Segment(C, B) → j
  6. Angle(B, C, A) → α
  7. Slope(f) → d_1
  8. FractionText(d_1) → text1
  9. Denominator(d_1) → d
  10. Numerator(d_1) → n
  11. OrthogonalLine(D, f) → g
  12. Intersect(l, m) → F
  13. Polygon(D, F, E) → poly2, e, d_2, f_1
  14. Polygon(H, G, A) → poly3, a_1, h_1, g_1
  15. Segment(H, G) → p
  16. Segment(G, A) → q
  17. Segment(D, F) → r
  18. Segment(F, E) → s
  19. Angle(H, G, A) → β
  20. Angle(E, F, D) → γ
  21. Intersect(f, g) → I
  22. Angle(B, I, D) → δ
  23. FractionText(Slope[g]) → text2
  24. Distance(D, I) → distanceDI
  25. Distance(D, E) → distanceDE
  26. Distance(A, B) → distanceAB