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Demonstration of Prism Section

Demonstration of Prism Section
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2017-01-19 11:02
Solid GeometryTransformationGeometric Construction
In collections Congruence (CO) Cluster Congruence (Vol 2) CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 Gail LeBlancCCSS High School: Geometry (Congruence) Volume 2 Unit 5: Triangle Congruence
This example demonstrates the process of a prism being cut by a plane, showing the changes in the section shape. Key mathematical concepts include prisms, sections, circles, and vectors. Using GeoGebra commands such as Segment, Circle, Intersect, and Translate, the changes in the section can be dynamically displayed. Suitable for students at the junior high school level and above for learning solid geometry.

GeoGebra Commands & Parameters

  1. Segment(B, C) → e
  2. Segment(C, A) → f
  3. Min(f, e) → m
  4. Segment(A, B) → d
  5. Min(d, f) → o
  6. Min(m, o) → u
  7. Polygon(A, B, C) → poly1, c, a, b
  8. Ray(A, B) → h
  9. Ray(B, C) → i
  10. Ray(C, A) → j
  11. Circle(C, (0.25 * u)) → p
  12. Circle(A, (0.25 * u)) → q
  13. Circle(B, (0.25 * u)) → r
  14. Intersect(p, f) → D,
  15. Intersect(p, e, 1) → E
  16. Intersect(r, e, 1) → F
  17. Intersect(r, d, 1) → G
  18. Intersect(q, d, 1) → H
  19. Intersect(q, f, 1) → I
  20. Intersect(r, h, 2) → J
  21. Intersect(q, j, 2) → K
  22. Intersect(p, i, 2) → L
  23. Midpoint(f) → M
  24. Midpoint(e) → N
  25. CircleSector(A, H, I) → s
  26. CircleSector(B, F, G) → t
  27. CircleSector(C, D, E) → c_1
  28. Angle(A, C, B) → α
  29. CircleSector(C, E, D) → d_1
  30. CircleSector(A, I, H) → e_1
  31. CircleSector(B, G, F) → f_1
  32. Min(d, e) → n
  33. Rotate(s, If[0 < l ≤ 1, (((-l) * 180))°, -180°], M) → s'
  34. Rotate(A, If[0 < l ≤ 1, (((-l) * 180))°, -180°], M) → A'
  35. Segment(M, A') → a_1
  36. Rotate(H, -180°, M) → H'
  37. Line(H', C) → b_1
  38. Rotate(B, If[0 < l ≤ 1, ((l * 180))°, 180°], N) → B'
  39. Rotate(t, If[0 < l ≤ 1, ((l * 180))°, 180°], N) → t'
  40. Segment(N, B') → g_1
  41. Segment(C, M) → h_1
  42. Segment(M, A) → i_1
  43. Segment(C, N) → j_1
  44. Segment(N, B) → k_1
  45. Rotate(A, If[0 < l ≤ 1, ((l * 180))°, -180°], M) → A'_1
  46. Rotate(B, If[0 < l ≤ 1, (((-l) * 180))°, -180°], N) → B'_1
  47. Segment(N, B'_1) → l_1
  48. Segment(M, A'_1) → m_1
  49. Rotate(e_1, If[0 < l ≤ 1, ((l * 180))°, -180°], M) → p_1
  50. Rotate(f_1, If[0 < l ≤ 1, (((-l) * 180))°, -180°], N) → q_1
  51. CircleSector(C, L, D) → r_1
  52. CircleSector(A, K, H) → s_1
  53. CircleSector(B, J, F) → t_1
  54. CircleSector(A, H, K) → c_2
  55. CircleSector(B, F, J) → d_2
  56. CircleSector(C, D, L) → e_2
  57. Dilate(A, 1 - v, C) → A'_2
  58. Dilate(B, 1 - v, C) → B'_2
  59. Vector(A, A'_2) → w
  60. Vector(B, B'_2) → u_1
  61. Translate(s_1, w) → f_2
  62. CircleArc(A, K, H) → g_2
  63. Translate(t_1, u_1) → h_2
  64. CircleArc(B, J, F) → k_2
  65. Translate(c_2, w) → p_2
  66. CircleArc(A, H, K) → q_2
  67. Translate(d_2, u_1) → r_2
  68. CircleArc(B, F, J) → s_2