勾股定理演示 by Mary Anne Ward

GeoGebra 命令及参数

1. Segment(A, B) → a
2. OrthogonalLine(B, a) → b
3. Point(b) → C
4. Segment(C, A) → c
5. Segment(C, B) → d
6. Circle(C, B) → e
7. OrthogonalLine(C, d) → f
8. Intersect(e, f, 2) → D
9. Segment(D, C) → g
10. OrthogonalLine(B, d) → h
11. OrthogonalLine(D, g) → i
12. Intersect(h, i) → E
13. Segment(E, B) → j
14. Segment(E, D) → k
15. Polygon(C, D, E, B) → poly1, c_1, d_1, e_1, b_1
16. PointIn(poly1) → Pointpoly1
17. Circle(A, B) → p
18. OrthogonalLine(A, a) → l
19. Intersect(p, l, 1) → F
20. Circle(B, A) → q
21. OrthogonalLine(B, a) → m
22. Intersect(q, m, 1) → G
23. OrthogonalLine(G, m) → n
24. Line(A, F) → r
25. Segment(A, F) → s
26. Segment(F, G) → t
27. Segment(G, B) → a_1
28. Polygon(A, B, G, F) → poly2, a_2, b_2, g_1, f_1
29. PointIn(poly2) → Pointpoly2
30. Circle(C, A) → h_1
31. Circle(A, C) → k_1
32. OrthogonalLine(C, c) → i_1
33. OrthogonalLine(A, c) → j_1
34. Intersect(h_1, i_1, 1) → H
35. Intersect(k_1, j_1, 1) → I
36. Segment(I, H) → l_1
37. Segment(H, C) → m_1
38. Polygon(I, H, C, A) → poly3, i_2, h_2, c_2, a_3
39. PointIn(poly3) → Pointpoly3_1
40. PointIn(poly3) → Pointpoly3