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Bar Graphs and Pie Charts

Bar Graphs and Pie Charts
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2018-06-23 07:47
Geometric ConstructionGraphing
This example demonstrates how to create bar graphs and pie charts using GeoGebra. It involves core math concepts like data visualization, statistical charts, and probability & statistics. Key GeoGebra commands/objects used include Polygon, Segment, Rotate, Intersect, and CircleSector. Suitable for middle school and above students learning data statistics and chart drawing, or for teaching demonstrations.

GeoGebra Commands & Parameters

  1. Polygon(A, C, D, B) → q1, a, c, d, b
  2. Polygon(E, G, H, F) → q2, e, g, h, f
  3. Polygon(I, K, L, J) → q3, i, k, l, j
  4. Polygon(M, O, P, N) → q4, m, o, p, n
  5. Polygon(Q, S, T, R) → q5, q, s, t, r
  6. Polygon(U, W, Z, V) → q6, u, w, z_1, v
  7. Segment((0, 0), (0, 1)) → f_1
  8. Rotate((0, 1), RAngle°, (0, 0)) → A_1
  9. Segment((0, 0), A_1) → g_1
  10. Intersect(f_1, g_1) → B_1
  11. Intersect(c_1, f_1, 1) → C_1
  12. Intersect(c_1, g_1, 1) → D_1
  13. CircleSector(B_1, C_1, D_1) → d_1
  14. Rotate(D_1, OAngle°, B_1) → E_1
  15. Segment(B_1, E_1) → h_1
  16. CircleSector(B_1, D_1, E_1) → e_1
  17. Rotate(E_1, YAngle°, B_1) → F_1
  18. CircleSector(B_1, E_1, F_1) → k_1
  19. Rotate(F_1, GAngle°, B_1) → G_1
  20. CircleSector(B_1, F_1, G_1) → p_1
  21. Rotate(G_1, BAngle°, B_1) → H_1
  22. CircleSector(B_1, G_1, H_1) → q_1
  23. CircleSector(B_1, H_1, C_1) → r_1