Exploring Triangle Areas in a Rectangle

Exploring Triangle Areas in a Rectangle
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2017-04-06 12:36
This example demonstrates the dynamic exploration of triangle areas within a rectangle by adjusting vertex positions. Key math concepts include triangle area calculation, rectangle properties, percentages, Pythagorean theorem, quadratic equations, and derivatives. Construction highlights involve commands/objects like Segment, OrthogonalLine, Point, Intersect, Polygon, Distance, Midpoint, and PointIn from GeoGebra. Suitable for high school mathematics education or self-study to understand the connection between geometric shapes and algebraic equations.

GeoGebra Commands & Parameters

  1. Segment(A, B) → f
  2. OrthogonalLine(A, f) → g
  3. OrthogonalLine(B, f) → h
  4. Point(g) → C
  5. OrthogonalLine(C, g) → i
  6. Intersect(h, i) → D
  7. Segment(A, C) → j
  8. Segment(C, D) → k
  9. Segment(D, B) → l
  10. Polygon(A, E, C) → poly1, c, a, e
  11. Polygon(B, E, D) → poly2, d, b, e_1
  12. Distance(A, B) → distanceAB
  13. Midpoint(A, B) →
  14. Distance(A, C) → distanceAC
  15. Midpoint(A, C) →
  16. PointIn(poly1) → Pointpoly1
  17. PointIn(poly2) → Pointpoly2