相似多边形 by Mr. Shinton

GeoGebra 命令及参数

1. Polygon(A, B, C) → poly1, c, a, b
2. Vector(A, D) → u
3. Translate(A, u) → A_2
4. Translate(B, u) → B'_1
5. Translate(C, u) → C_2
6. Polygon(A_2, B'_1, C_2) → poly1', c', a', b'
7. Dilate(A_2, 1.75, D) → A'
8. Dilate(B'_1, 1.75, D) → B'
9. Dilate(C_2, 1.75, D) → C'
10. Polygon(A', B', C') → poly1'', c'', a'', b''
11. Point(a) → E
12. Translate(E, u) → E_1
13. Dilate(E_1, 1.75, A') → E'
14. Angle(C, A, B) → α
15. Angle(A, B, C) → β
16. Angle(B, C, A) → γ
17. Angle(C', A', B') → δ
18. Angle(A', B', C') → ε
19. Angle(B', C', A') → ζ
20. Distance(B, E) → distanceBE
21. Distance(E, C) → distanceEC
22. Distance(B', E') → distanceB'E'
23. Distance(E', C') → distanceE'C'
24. Segment(B, E) → f
25. Segment(E, C) → g
26. Segment(B', E') → h
27. Segment(E', C') → i
28. Segment(A, B) → l
29. Segment(B, C) → m
30. Segment(C, A) → n
31. Segment(A', B') → p
32. Segment(B', C') → q
33. Segment(C', A') → r