正方形的边、角和对角线测量

GeoGebra 命令及参数

1. Polygon(D, C, 4) → poly1, a, b, c, d, B, A
2. Segment(A, C) → e
3. Segment(B, D) → f
4. Intersect(e, f) → E
5. Distance(A, B) → distanceAB
6. Distance(B, C) → distanceBC
7. Distance(C, D) → distanceCD
8. Distance(D, A) → distanceDA
9. Distance(A, C) → distanceAC
10. Distance(B, D) → distanceBD
11. Distance(A, E) → distanceAE
12. Distance(C, E) → distanceCE
13. Distance(B, E) → distanceBE
14. Distance(D, E) → distanceDE
15. Angle(D, A, B) → α
16. Angle(A, B, C) → β
17. Angle(B, C, D) → γ
18. Angle(C, D, A) → δ
19. Angle(B, E, A) → ε
20. Angle(C, E, B) → ζ
21. Angle(D, E, C) → η
22. Angle(A, E, D) → 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