探索勾股定理

GeoGebra 命令及参数

1. Line(A_1, B_1) → f
2. OrthogonalLine(A, f) → g
3. Line(B, f) → h
4. Intersect(g, h) → E
5. Segment(B, A) → i
6. Segment(B, E) → k
7. Line(A, f) → l
8. Polygon(A, B, 4) → poly1, m, n, p, q, C, D
9. OrthogonalLine(C, f) → r
10. Line(D, f) → s
11. Intersect(r, s) → G
12. Angle(C, D, A) → ε
13. Angle(D, A, B) → ζ
14. Angle(A, B, C) → η
15. Angle(B, C, D) → θ
16. Intersect(g, s) → F
17. Intersect(h, r) → H
18. Segment(G, F) → t
19. Segment(F, E) → a
20. Segment(E, H) → b
21. Segment(H, G) → c
22. Segment(G, C) → j
23. Segment(F, D) → d
24. Segment(E, A) → e
25. Angle(C, G, D) → α
26. Angle(D, F, A) → β
27. Angle(A, E, B) → γ
28. Angle(B, H, C) → δ