菱形的几何作图 by shubbs2019

GeoGebra 命令及参数

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