勾股定理演示 by user25677_1 (2)

GeoGebra 命令及参数

1. Point(Circle[A, abs(a_3)]) → B
2. Segment(A, B) → a
3. OrthogonalLine(B, a) → c_3
4. Point(c_3) → C
5. Segment(A, C) → c
6. Circle(B, A) → e
7. Intersect(e, c_3, 1) → D
8. OrthogonalLine(D, c_3) → f
9. OrthogonalLine(A, a) → g
10. Intersect(f, g) → E
11. Circle(A, C) → h
12. OrthogonalLine(A, c) → i
13. OrthogonalLine(C, c) → j
14. Intersect(h, i, 2) → F
15. OrthogonalLine(F, i) → k
16. Intersect(j, k) → G
17. Circle(C, B) → p
18. OrthogonalLine(C, c_3) → l
19. Intersect(p, l, 1) → H
20. OrthogonalLine(H, l) → m
21. OrthogonalLine(B, c_3) → n
22. Intersect(m, n) → I
23. Segment(C, B) → b
24. Polygon(A, C, G, F) → poly1, a_1, c_1, g_1, f_1
25. Polygon(C, H, I, B) → poly2, c_2, h_1, i_1, b_2
26. Polygon(A, B, D, E) → poly3, a_2, b_3, d_1, e_1
27. Midpoint(F, C) → J
28. Midpoint(I, C) → K
29. Midpoint(D, A) → L