几何作图范例：构造与变换

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Circle(A, B) → c
3. Circle(B, A) → d
4. Intersect(c, d, 1) → C
5. Segment(A, C) → g
6. Segment(B, C) → h
7. Rotate(D, (-(60°)), E) → D'
8. Angle(D', E, D) → α
9. Segment(D, E) → i
10. Segment(E, D') → j
11. Point(i) → F
12. Circle(E, F) → e
13. Intersect(e, j, 1) → G
14. Intersect(e, i, 1) → H
15. Circle(F, Distance[F, E]) → k
16. Circle(G, Distance[G, E]) → p
17. Intersect(k, p, 1) → I
18. Ray(E, I) → l
19. Rotate(J, 45°, K) → J'
20. Angle(J, K, J') → β
21. Segment(J, K) → m
22. Segment(J', K) → n
23. Circle(K, 3) → q
24. Intersect(q, m, 1) → L
25. Intersect(q, n, 1) → M
26. Segment(N, O) → r
27. Circle(N, Distance[K, L]) → s
28. Intersect(s, r, 1) → P
29. Segment(M, L) → t
30. Circle(P, Distance[L, M]) → c_1
31. Intersect(s, c_1, 1) → Q
32. Segment(N, R) → a
33. Segment(S, T) → b
34. Circle(S, T) → d_1
35. Circle(T, S) → e_1
36. Intersect(d_1, e_1, 1) → U
37. Intersect(d_1, e_1, 2) → V
38. Segment(U, V) → f_1
39. Intersect(b, f_1) → W