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Perpendicular Lines by lisagebbie

Perpendicular Lines by lisagebbie
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2014-09-17 23:01
Coordinate GeometryGeometric ConstructionSlider Animation
An interactive file for students to discover the relationship between slopes of perpendicular lines. This example involves the concept of slope and uses commands like Line, OrthogonalLine, FractionText, and Slope in GeoGebra. Suitable for middle school and above students learning straight line geometry.

GeoGebra Commands & Parameters

  1. Line(A, B) → a
  2. OrthogonalLine(C, a) → b
  3. FractionText(Slope[a]) → text1
  4. Slope(a) → c
  5. Slope(b) → d
  6. FractionText(Slope[b]) → text5

AI Drawing Prompt Reference

Draw two perpendicular lines, one passing through points A and B, and the other perpendicular to the first line passing through point C. Show the slope of the first line and display the slope of the second line below.
The prompt above was compiled from the original drawing commands and is for reference only.