矩形的性质探索

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(yAxis) → B
3. OrthogonalLine(B, yAxis) → a
4. Point(a) → C
5. OrthogonalLine(C, a) → b
6. Intersect(b, xAxis) → D
7. Polygon(A, B, C, D) → poly1, a_1, b_1, c, d
8. Angle(D, A, B) → α
9. Angle(A, B, C) → β
10. Angle(B, C, D) → γ
11. Angle(C, D, A) → δ
12. Segment(A, C) → g
13. Segment(B, D) → h
14. Intersect(g, h) → E
15. Segment(A, E) → j
16. Segment(E, C) → k
17. Segment(D, E) → l
18. Segment(E, B) → m
19. Angle(A, E, D) → ε
20. Angle(D, E, C) → ζ
21. Angle(C, E, B) → η
22. Angle(B, E, A) → θ
23. Angle(E, A, B) → ι
24. Angle(A, B, E) → κ
25. Angle(E, B, C) → λ
26. Angle(B, C, E) → μ
27. Angle(E, C, D) → ν
28. Angle(C, D, E) → ξ
29. Angle(E, D, A) → ο
30. Angle(D, A, E) → ρ
31. Polygon(A, B, C, D) → poly2, a_2, b_2, c_1, d_1
32. Segment(B, D) → q
33. Segment(A, C) → r
34. Segment(B, D) → p
35. Segment(A, C) → t