勾股定理演示 by francisgale

GeoGebra 命令及参数

1. Segment(A, B) → a_2
2. Semicircle(A, B) → c_2
3. Point(c_2) → C
4. Polygon(A, B, C) → poly1, c, a, b
5. Angle(B, A, C) → α
6. Angle(C, B, A) → β
7. Angle(A, C, B) → γ
8. OrthogonalLine(C, a) → d
9. OrthogonalLine(B, a) → e
10. Circle(C, B) → f
11. Intersect(f, d, 1) → D
12. Line(D, a) → g
13. Intersect(e, g) → E
14. Polygon(C, B, E, D) → poly2, c_1, b_1, e_1, d_1
15. OrthogonalLine(C, b) → h
16. OrthogonalLine(A, b) → i
17. Circle(A, C) → k
18. Intersect(k, i, 1) → F
19. Line(F, b) → j
20. Intersect(h, j) → G
21. Polygon(A, F, G, C) → poly3, a_1, f_1, g_1, c_3
22. OrthogonalLine(A, c) → l
23. OrthogonalLine(B, c) → m
24. Circle(B, A) → p
25. Intersect(p, m, 1) → H
26. Line(H, c) → n
27. Intersect(l, n) → I
28. Polygon(A, B, H, I) → poly4, a_3, b_2, h_1, i_1
29. Point(poly2) → J
30. Point(a_3) → K
31. Point(c_3) → L
32. Segment(C, E) → q
33. Segment(D, B) → r
34. Point(q) → M
35. Segment(A, H) → s
36. Segment(B, I) → t
37. Point(s) → N
38. Segment(G, A) → j_1
39. Segment(F, C) → k_1
40. Point(j_1) → O