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Perimeter of Irregular Shapes by Kong Chan

Perimeter of Irregular Shapes by Kong Chan
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2018-11-22 16:12
PolygonVectorGeometric Construction
This example demonstrates how to calculate the perimeter of irregular polygons. It involves core math concepts like perimeter calculation, 2D vectors, Pythagorean theorem, and ratios. Construction highlights include using Segment and Polygon commands, with various blue and red objects for visualization. Suitable for upper elementary or middle school students learning geometric constructions and perimeter.

GeoGebra Commands & Parameters

  1. Segment(Blue01a, Blue01b) → Blue01
  2. Segment(Blue02a, Blue02b) → Blue02
  3. Segment(Blue03a, Blue03b) → Blue03
  4. Segment(Blue04a, Blue04b) → Blue04
  5. Segment(Red01a, Red01b) → Red01
  6. Segment(Red02a, Red02b) → Red02
  7. Segment(Red03a, Red03b) → Red03
  8. Segment(Red04a, Red04b) → Red04
  9. Segment(Blue05a, Blue05b) → Blue05
  10. Segment(Red05a, Red05b) → Red05
  11. Segment(Blue06a, Blue06b) → Blue06
  12. Segment(Red06a, Red06b) → Red06
  13. Segment(Blue07a, Blue07b) → Blue07
  14. Segment(Blue08a, Blue08b) → Blue08
  15. Segment(Blue09a, Blue09b) → Blue09
  16. Segment(Blue10a, Blue10b) → Blue10
  17. Segment(Blue11a, Blue11b) → Blue11
  18. Segment(Blue12a, Blue12b) → Blue12
  19. Segment(Red07a, Red07b) → Red07
  20. Segment(Red08a, Red08b) → Red08
  21. Segment(Red09a, Red09b) → Red09
  22. Segment(Red10a, Red10b) → Red10
  23. Segment(Red11a, Red11b) → Red11
  24. Segment(Red12a, Red12b) → Red12
  25. Segment(Green01a, Green01b) → Green01
  26. Segment(Green02a, Green02b) → Green02
  27. Segment(Green03a, Green03b) → Green03
  28. Segment(Green04a, Green04b) → Green04
  29. Segment(Green05a, Green05b) → Green05
  30. Segment(Green06a, Green06b) → Green06
  31. Segment(Green07a, Green07b) → Green07
  32. Segment(Green08a, Green08b) → Green08
  33. Segment(Green09a, Green09b) → Green09
  34. Segment(Green10a, Green10b) → Green10
  35. Segment(Green11a, Green11b) → Green11
  36. Segment(Green12a, Green12b) → Green12
  37. Segment(Green13a, Green13b) → Green13
  38. Segment(Green14a, Green14b) → Green14
  39. Polygon(VPoly1Fa, VPoly1Fb, VPoly1Fc, VPoly1Fd, VPoly1Fe, VPoly1Ff) → Poly1F, SPoly1Fa, SPoly1Fb, SPoly1Fc, SPoly1Fd, SPoly1Fe, SPoly1Ff
  40. Polygon(VPoly1Ma, VPoly1Mb, VPoly1Mc, VPoly1Md, VPoly1Me, VPoly1Mf) → Poly1M, SPoly1Ma, SPoly1Mb, SPoly1Mc, SPoly1Md, SPoly1Me, SPoly1Mf
  41. Polygon(VPoly2Fa, VPoly2Fb, VPoly2Fc, VPoly2Fd) → Poly2F, SPoly2Fa, SPoly2Fb, SPoly2Fc, SPoly2Fd
  42. Polygon(VPoly2Ma, VPoly2Mb, VPoly2Mc, VPoly2Md) → Poly2M, SPoly2Ma, SPoly2Mb, SPoly2Mc, SPoly2Md
  43. Segment(A, B) → L1
  44. Segment(C, D) → L2
  45. Segment(G, H) → L3
  46. Segment(I, J) → L4
  47. Segment(K, L) → L5
  48. Segment(M, N) → L6
  49. Segment(O, P) → R1
  50. Segment(Q, R) → R2
  51. Segment(S, T) → R3
  52. Segment(U, V) → R4