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Rectangle & Parallelogram Area

Rectangle & Parallelogram Area
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2016-12-13 23:11
PolygonCoordinate GeometryParametric EquationGeometric Construction
This example demonstrates the calculation of areas for rectangles and parallelograms. Key math concepts include area formulas, properties of parallelograms, and rectangle characteristics. It is constructed using GeoGebra commands like Line, OrthogonalLine, Point, Intersect, Polygon, Segment. Suitable for middle school students and above learning geometric area calculations, or for teaching parametric equations and coordinate geometry.

GeoGebra Commands & Parameters

  1. Line(A, B) → f
  2. OrthogonalLine(A, f) → g
  3. Point(f) → C
  4. OrthogonalLine(C, f) → h
  5. Point(h) → D
  6. OrthogonalLine(D, h) → i
  7. Intersect(i, g) → E
  8. Polygon(D, E, A, C) → poly1, d, e, a, c
  9. Point(i) → F
  10. Segment(F, A) → j
  11. Line(C, j) → k
  12. Intersect(i, k) → G
  13. Polygon(F, A, C, G) → poly2, f_1, a_1, c_1, g_1