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Explore Perimeter and Area of Rectangles

Explore Perimeter and Area of Rectangles
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2017-04-26 05:35
PolygonCoordinate GeometryProbability & Statistics
This example explores the perimeter and area of rectangles using the coordinate axis. It demonstrates basic geometric properties of rectangles, involving key math concepts such as area, perimeter, and random experiments. Using GeoGebra commands like Intersect, OrthogonalLine, and Polygon, you can dynamically adjust the side lengths of the rectangle and observe changes in perimeter and area. Suitable for middle school and above students to learn geometry and probability statistics.

GeoGebra Commands & Parameters

  1. Intersect(xAxis, yAxis) → A
  2. OrthogonalLine(C, yAxis) → a
  3. OrthogonalLine(C, a) → b
  4. Intersect(a, yAxis) → B
  5. Intersect(b, xAxis) → D
  6. Polygon(A, B, C, D) → poly1, a_1, b_1, c, d
  7. Textfield(text1) → InputBox1
  8. Textfield() → InputBox2
  9. PointIn(poly1) → Pointpoly1_1
  10. Perimeter(poly1) → perimeterpoly1
  11. PointIn(poly1) → Pointpoly1_2
  12. PointIn(poly1) → Pointpoly1_3
  13. Perimeter(poly1) → e
  14. PointIn(poly1) → Pointpoly1_4
  15. Perimeter(poly1) → f
  16. PointIn(poly1) → Pointpoly1