相似变换的性质 by Gabriel Davis

GeoGebra 命令及参数

1. Dilate(A, s, Center) → A'
2. Dilate(C, s, Center) → C'
3. Dilate(B, s, Center) → B'
4. Polygon(A, B, C) → poly1, c, a, b
5. Polygon(A', B', C') → poly2, c', a', b'
6. Distance(A, B) → distanceAB
7. Distance(B, C) → distanceBC
8. Distance(C, A) → distanceCA
9. Distance(A', B') → distanceA'B'
10. Distance(B', C') → distanceB'C'
11. Distance(C', A') → distanceC'A'
12. Line(A, B) → g
13. Area(poly2) → Area2
14. Area(poly1) → Area1
15. Distance(Center, A') → distanceCenterA'
16. Slope(g) → m_1
17. Distance(Center, A) → distanceCenterA
18. Distance(Center, C') → distanceCenterC'
19. Distance(Center, C) → distanceCenterC
20. Distance(Center, A') → o
21. Distance(Center, A) → p
22. Distance(Center, B') → distanceCenterB'
23. Distance(Center, B) → distanceCenterB
24. Slope(r) → m_3
25. Dilate(r, s, Center) → r'
26. Slope(r') → m_4
27. Line(A', B') → h
28. Slope(h) → m_2
29. Ray(Center, A) → k
30. Ray(Center, C) → l
31. Ray(Center, B) → m
32. Ray(Center, A') → a_1
33. Ray(Center, B') → b_1
34. Ray(Center, C') → c_1
35. Line(D, E) → e_1
36. Dilate(e_1, s, Center) → f_1
37. Segment(F, G) → g_1
38. Dilate(F, s, Center) → F'
39. Dilate(G, s, Center) → G'
40. Segment(F', G') → h_1
41. Angle(C', A', B') → α
42. Angle(B', C', A') → β
43. Angle(A', B', C') → γ
44. Angle(B, C, A) → δ
45. Angle(A, B, C) → ε
46. Angle(C, A, B) → ζ