Pyramid Volume and Surface Area Calculation

Pyramid Volume and Surface Area Calculation
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2014-11-18 00:13
In collections Surface Area and Volume
This example demonstrates how to calculate the volume and surface area of a pyramid by adjusting its dimensions. It involves core math concepts like solid geometry, volume formulas, surface area formulas, and geometric transformations. The construction uses GeoGebra commands/objects such as Line, Point, Intersect, Segment, Midpoint, Rotate, Angle, Polygon. Suitable for high school students learning and understanding volume and surface area calculations in solid geometry, as well as for mathematical teaching demonstrations.

GeoGebra Commands & Parameters

  1. Line(A, B) → a
  2. Line(A, C) → b
  3. Point(b) → E
  4. Point(a) → F
  5. Line(E, a) → c
  6. Line(F, b) → d
  7. Intersect(c, d) → G
  8. Segment(A, F) → e
  9. Segment(F, G) → f
  10. Segment(G, E) → g
  11. Segment(E, A) → h
  12. Midpoint(e) → H
  13. Midpoint(f) → I
  14. Line(I, e) → i
  15. Line(H, h) → j
  16. Intersect(i, j) → J
  17. Rotate(I, 90*°, J) → I'
  18. Angle(I, J, I') → α
  19. Line(J, I') → k
  20. Segment(I, J) → l
  21. Point(k) → K
  22. Segment(K, J) → m
  23. Segment(K, G) → n
  24. Segment(F, K) → p
  25. Segment(A, K) → q
  26. Segment(E, K) → r
  27. Polygon(A, F, G, E) → poly1, a_1, f_1, g_1, e_1
  28. Intersect(f, g) → L
  29. Line(A_1, B_1) → a_2
  30. Line(A_1, C_1) → b_1
  31. Point(b_1) → E_1
  32. Point(a_2) → F_1
  33. Line(E_1, a_2) → c_1
  34. Line(F_1, b_1) → d_1
  35. Intersect(c_1, d_1) → G_1
  36. Segment(A_1, F_1) → e_2
  37. Segment(F_1, G_1) → f_2
  38. Segment(G_1, E_1) → g_2
  39. Segment(E_1, A_1) → h_1
  40. Midpoint(e_2) → H_1
  41. Midpoint(f_2) → I_1
  42. Line(I_1, e_2) → i_1
  43. Line(H_1, h_1) → j_1
  44. Intersect(i_1, j_1) → J_1
  45. Rotate(I_1, 90*°, J_1) → I'_1
  46. Angle(I_1, J_1, I'_1) → α_1
  47. Line(J_1, I'_1) → k_1
  48. Segment(I_1, J_1) → l_1
  49. Point(k_1) → K_1
  50. Segment(K_1, J_1) → m_1
  51. Segment(K_1, G_1) → n_1
  52. Segment(F_1, K_1) → p_1
  53. Segment(A_1, K_1) → q_1
  54. Segment(E_1, K_1) → r_1
  55. Polygon(A_1, F_1, G_1, E_1) → poly1_1, a_3, f_3, g_3, e_3
  56. Line(A_2, B_2) → a_4
  57. Line(A_2, C_2) → b_2
  58. Point(b_2) → E_2
  59. Point(a_4) → F_2
  60. Line(E_2, a_4) → c_2
  61. Line(F_2, b_2) → d_2
  62. Intersect(c_2, d_2) → G_2
  63. Segment(A_2, F_2) → e_4
  64. Segment(F_2, G_2) → f_4
  65. Segment(G_2, E_2) → g_4
  66. Segment(E_2, A_2) → h_2
  67. Midpoint(e_4) → H_2
  68. Midpoint(f_4) → I_2
  69. Line(I_2, e_4) → i_2
  70. Line(H_2, h_2) → j_2
  71. Intersect(i_2, j_2) → J_2
  72. Rotate(I_2, 90*°, J_2) → I'_2
  73. Angle(I_2, J_2, I'_2) → α_2
  74. Line(J_2, I'_2) → k_2
  75. Segment(I_2, J_2) → l_2
  76. Point(k_2) → K_2
  77. Segment(K_2, J_2) → m_2
  78. Segment(K_2, G_2) → n_2
  79. Segment(F_2, K_2) → p_2
  80. Segment(A_2, K_2) → q_2
  81. Segment(E_2, K_2) → r_2
  82. Polygon(A_2, F_2, G_2, E_2) → poly1_2, a_5, f_5, g_5, e_5
  83. Segment(K, L) → s_1
  84. Point(l) → O
  85. Segment(K, O) → t_1