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Area and Perimeter of Parallelograms

Area and Perimeter of Parallelograms
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2017-03-22 09:32
PolygonGeometric Construction
This example demonstrates the calculation of the area and perimeter of parallelograms. Key mathematical concepts include the properties of parallelograms, area formulas, and perimeter calculations. Using GeoGebra commands such as Segment, Polygon, and Perimeter, you can dynamically construct parallelograms and observe changes in their area and perimeter. Suitable for middle school and above students learning geometry and area calculations.

GeoGebra Commands & Parameters

  1. Segment(A, B) → a
  2. Circle(B, C) → c
  3. Point(c) → D
  4. Segment(B, D) → b
  5. Line(D, a) → d
  6. Line(A, b) → e
  7. Intersect(d, e) → E
  8. Polygon(A, E, D, B) → poly1, a_1, e_1, d_1, b_1
  9. Segment(A, E) → f
  10. Segment(E, D) → g
  11. Segment(D, B) → h
  12. Segment(B, A) → i
  13. OrthogonalLine(B, a) → j
  14. Line(E, D) → k
  15. OrthogonalLine(B, a) → l
  16. Intersect(l, k) → F
  17. Segment(B, F) → m
  18. Perimeter(poly1) → perimeterpoly1
  19. PointIn(poly1) → Pointpoly1