正方形性质探究 by Matthew Zeigler

GeoGebra 命令及参数

1. Polygon(A, B, 4) → poly1, a, b, c, d, C, D
2. Segment(A, C) → AC
3. Segment(B, D) → BD
4. Intersect(AC, BD) → E
5. Segment(A, E) → AE
6. Segment(D, E) → DE
7. Segment(C, E) → CE
8. Segment(B, E) → BE
9. Segment(D, B) → g
10. Segment(C, A) → h
11. Angle(B, A, C) → α
12. Angle(C, A, D) → β
13. Angle(A, D, B) → γ
14. Angle(B, D, C) → δ
15. Angle(D, C, A) → ε
16. Angle(A, C, B) → ζ
17. Angle(C, B, D) → η
18. Angle(D, B, A) → θ
19. Segment(A, D) → AD
20. Segment(D, C) → DC
21. Segment(C, B) → CB
22. Segment(B, A) → BA
23. Angle(poly1) → ι, κ, λ, μ
24. Line(A, B) → l
25. Line(D, C) → m
26. Line(A, D) → n
27. Line(B, C) → p
28. Segment(A, C) → q
29. Segment(D, B) → r
30. Angle(r, q) → ν
31. Polygon(F, G, H, I) → poly2, f_1, g_1, h_1, i_1