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Cylinder Dimensions Demo

Cylinder Dimensions Demo
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2017-04-28 08:54
Solid GeometryGeometric Construction
This example demonstrates the geometry and dimensions of a cylinder as its base radius and height change. Key math concepts include the volume formula V=πr²h and surface area formula A=2πrh+2πr². GeoGebra commands like Line, Point, Ellipse, Vector, Translate, Intersect, Segment, PointIn, Midpoint, Circumference are used to construct the cylinder dynamically. Suitable for high school solid geometry education to visually understand volume and surface area calculations and parameter effects.

GeoGebra Commands & Parameters

  1. Line(A, B) → a
  2. Line(A, C) → b
  3. Point(b) → D
  4. Ellipse(A, D, E) → c
  5. Point(a) → F
  6. Vector(A, F) → u
  7. Translate(c, u) → c'
  8. Line(F, b) → d
  9. Intersect(c', d, 1) → G
  10. Intersect(c, b, 1) → H
  11. Intersect(c', d, 2) → I
  12. Intersect(c, b, 2) → J
  13. Segment(H, G) → e
  14. Segment(I, J) → f
  15. PointIn(c') → Pointc'
  16. Intersect(c, e, 1) → K
  17. Segment(K, D) → h
  18. Midpoint(h) → L
  19. Point(c) → M
  20. Intersect(c, e, 1) → P
  21. Intersect(c, f, 1) → N
  22. Segment(P, N) → i
  23. Midpoint(i) → O
  24. Vector(O, P) → v
  25. Circumference(c) → circumferencec
  26. PointIn(c) → Pointc_1
  27. PointIn(c) → Pointc
  28. Segment(O, P) → k