相似三角形中的三角函数比探索（APS）

GeoGebra 命令及参数

1. Point(Circle[A, (sqrt(3) * Length)]) → B
2. Segment(A, B) → a
3. Rotate(B, Angle, A) → B'
4. Angle(B, A, B') → α
5. Segment(A, B') → b
6. OrthogonalLine(B', a) → c
7. Intersect(c, a) → C
8. Segment(B', C) → d
9. Segment(C, A) → e
10. Angle(B', C, A) → β
11. Point(Circle[D, (Length * sqrt(2))]) → E
12. Segment(D, E) → f
13. Rotate(E, Angle, D) → E'
14. Angle(E, D, E') → γ
15. OrthogonalLine(E', f) → g
16. Intersect(g, f) → F
17. Segment(D, E') → h
18. Segment(E', F) → i
19. Segment(F, D) → j
20. Angle(E', F, D) → δ
21. Angle(D, E', F) → ε
22. Angle(A, B', C) → ζ
23. Point(Circle[G, Length]) → H
24. Segment(G, H) → k
25. Rotate(H, Angle, G) → H'
26. Angle(H, G, H') → η
27. OrthogonalLine(H', k) → l
28. Intersect(l, k) → I
29. Segment(G, H') → m
30. Segment(H', I) → n
31. Segment(I, G) → p
32. Angle(G, H', I) → θ
33. Angle(H', I, G) → ι
34. Polygon(G, H', I) → poly1, i_1, g_1, h'
35. Polygon(D, E', F) → poly2, f_1, d_1, e'
36. Polygon(A, B', C) → poly3, c_1, a_1, b'