Volume of an Open Box

Volume of an Open Box
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2022-05-05 21:52
This example demonstrates how to calculate the volume of an open box by cutting squares from the corners of a rectangular piece of paper. It involves core mathematical concepts such as volume calculation, function graphing, differential calculus, tangent lines, and optimization. GeoGebra commands like Intersect, Segment, Point, Midpoint, Circle, Mirror, Rotate, and Polygon are used in the construction. Suitable for high school and above students to understand solid geometry, calculus, and function applications, particularly for optimization problems.

GeoGebra Commands & Parameters

  1. Intersect(xAxis, yAxis) → A
  2. Segment(B_{1}, A) → f
  3. Segment(A, C_{1}) → g
  4. Point(f) → D
  5. Point(g) → B
  6. Midpoint(D, C) → G
  7. Midpoint(A, B) → H
  8. Midpoint(D, A) → J
  9. Segment(D, A) → j
  10. Segment(D, G) → h
  11. Segment(G, C) → i
  12. Segment(C, B) → k
  13. Point(h) → I
  14. Circle(D, I) → c
  15. Intersect(c, j, 1) → K
  16. Mirror(I, G) → I'
  17. Mirror(K, J) → K'
  18. Midpoint(C, B) → M
  19. Segment(J, M) → l
  20. Mirror(I', l) → I''
  21. Mirror(I, l) → I'_{1}
  22. Mirror(L, l) → L'
  23. Segment(G, H) → m
  24. Mirror(L, m) → L'_{1}
  25. Mirror(L', m) → L''
  26. Mirror(K', m) → K''
  27. Mirror(K, m) → K'_{1}
  28. Segment(K, K'_{1}) → n
  29. Segment(A, B) → p
  30. Segment(K', K'') → q
  31. Segment(I, I'_{1}) → r
  32. Segment(I', I'') → s
  33. Rotate(I'_{1}, (-α), q) → N
  34. Rotate(I'', (-α), q) → I'''
  35. Rotate(K, (-α), r) → K'_{2}
  36. Rotate(K', (-α), r) → K''_{1}
  37. Rotate(I, α, n) → I'_{2}
  38. Rotate(I', α, n) → I''_{1}
  39. Rotate(K'', α, s) → K'''
  40. Rotate(K'_{1}, α, s) → O
  41. Polygon(L, L', L'', L'_{1}) → q1, l_1, l', l'', l'_{1}
  42. Polygon(I''', L'', L', N) → q2, i''', t, a, n_1
  43. Polygon(K''_{1}, L', L, K'_{2}) → q3, k''_{1}, b, l_2, k'_{2}
  44. Polygon(I'_{2}, L, L'_{1}, I''_{1}) → q4, i'_{2}, l_3, d, i''_{1}
  45. Polygon(O, L'_{1}, L'', K''') → q5, o, e, f_1, k'''
  46. Segment(K'_{1}, K'') → g_1
  47. Segment(I', C) → h_1
  48. Segment(C, K'_{1}) → i_1
  49. Segment(G, I') → j_1
  50. Segment(K'', B) → k_1
  51. Segment(B, I'') → m_1
  52. Segment(I'_{1}, I'') → p_1
  53. Segment(D, K) → q_1
  54. Segment(D, I) → r_1
  55. Segment(K', A) → s_1
  56. Segment(A, I'_{1}) → t_1
  57. Segment(K, K') → a_1
  58. Segment(I, G) → b_1
  59. Segment(L'_{1}, K'_{1}) → c_1

AI Drawing Prompt Reference

Create a 2D net of an open rectangular box obtained from a sheet by cutting squares from its corners. Start from perpendicular axes and place a base segment with its endpoints, then construct several midpoints and use intersections between a circle (centered at a constructed midpoint) and a diagonal segment to get key points. Build symmetry by mirroring parts across the lines through the midpoints, producing multiple reflected boundary edges. Use rotations around appropriate pivot edges to angle the copied panels, and finally connect the resulting corner points to form several polygon faces arranged as the box’s net, clearly showing the fold lines and the open-top structure.
The prompt above was compiled from the original drawing commands and is for reference only.