正方形模板与探究问题

GeoGebra 命令及参数

1. Segment(A, B) → a
2. Circle(A, B) → c
3. OrthogonalLine(A, a) → b
4. Intersect(c, b, 2) → D
5. OrthogonalLine(D, b) → d
6. OrthogonalLine(B, a) → e
7. Intersect(d, e) → C
8. Segment(A, D) → f
9. Segment(D, C) → g
10. Segment(C, B) → h
11. Angle(C, B, A) → α
12. Angle(B, A, D) → β
13. Angle(A, D, C) → γ
14. Angle(D, C, B) → δ
15. Midpoint(A, C) → E
16. Angle(E, C, B) → ε
17. Angle(D, C, E) → ζ
18. Angle(E, D, C) → η
19. Angle(A, D, E) → θ
20. Angle(B, A, E) → ι
21. Angle(E, B, A) → κ
22. Angle(C, B, E) → λ
23. Angle(E, A, D) → μ
24. Angle(B, E, C) → ν
25. Polygon(A, B, C, D) → poly3, a_3, b_3, c_2, d_2