菱形对角线性质探究

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Circle(B, Segment[A, B]) → c
3. Circle(A, Segment[B, A]) → d
4. Point(c) → C
5. Segment(B, C) → g
6. Circle(C, Segment[B, A]) → e
7. Intersect(d, e, 2) → D
8. Segment(D, C) → h
9. Segment(D, A) → i
10. Segment(A, C) → j
11. Segment(B, D) → k
12. Intersect(j, k) → E
13. Angle(C, E, B) → α
14. Angle(C, D, E) → β
15. Angle(E, D, A) → γ
16. Angle(D, A, E) → δ
17. Angle(E, A, B) → ε
18. Angle(A, B, E) → ζ
19. Angle(E, B, C) → η
20. Angle(B, C, E) → θ
21. Angle(E, C, D) → ι