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Sum of Two Relative Numbers

Sum of Two Relative Numbers
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2020-06-07 15:32
VectorCoordinate GeometryGeometric Construction
This example demonstrates the addition of two relative numbers. Key mathematical concepts include addition and relative numbers. Using GeoGebra commands such as Vector, Segment, and Line, the geometric meaning of addition is visually illustrated. Suitable for students at the junior high school level and above.

GeoGebra Commands & Parameters

  1. Vector(A, B) → u
  2. Vector(C, D) → v
  3. Segment(B, C) → c
  4. Segment(E, D) → d
  5. Line(G, yAxis) → e
  6. Point(e) → H
  7. Point(yAxis) → I
  8. Midpoint(I, H) → J
  9. Line(I, yAxis) → g
  10. Line(E, xAxis) → h
  11. Intersect(e, h) → L
  12. Segment(E, L) → i
  13. Midpoint(B, A) → M
  14. Midpoint(D, C) → N
  15. Polygon(P, Q, R, S) → poly1, p, q, r, s_1
  16. Point(xAxis) → T
  17. Line(T, xAxis) → k
  18. Polygon(U, U - (150, 0), U - (150, 50), U - (0, 50)) → poly2, l, m, n, t
  19. Polygon(G + (8, 0), G + (300, 0), G + (300, -50), G - (-8, 50)) → poly3, a_1, b_1, c_1, d_1
  20. Point(l) → B_1
  21. Ray(U, B_1) → f_1
  22. Segment(J + (0.9, 65), K + (0.9, 0)) → f