菱形的性质 by Ibraheem marei - ابراهيم مرعي

GeoGebra 命令及参数

1. Segment(A, B) → a
2. Circle(A, B) → c
3. Point(c) → C
4. Segment(C, A) → b
5. Circle(B, Distance[A, B]) → d
6. Circle(C, Distance[A, B]) → e
7. Intersect(d, e) → D_1, D, ,
8. Segment(C, D) → f
9. Segment(D, B) → g
10. Polygon(A, C, D, B) → poly1, a_1, c_1, d_1, b_1
11. Distance(f, b) → h
12. Distance(a, g) → i
13. Segment(C, B) → k
14. Segment(A, D) → l
15. Intersect(k, l) → E
16. Angle(D, E, C) → α
17. Angle(A, C, E) → β
18. Angle(D, C, E) → γ
19. Angle(A, B, E) → δ
20. Angle(D, B, E) → ε
21. Angle(C, D, E) → ζ
22. Angle(B, D, E) → η
23. Angle(B, A, E) → θ
24. Angle(E, A, C) → ι