同侧内角与外角的几何作图

GeoGebra 命令及参数

1. Rotate(C, ((-o) * π / 180), D) → C'
2. Line(D, C') → l_1
3. Textfield(a) → a1
4. Textfield(b) → a2
5. Textfield(c) → a3
6. Textfield(d) → a4
7. Textfield(e) → a5
8. Textfield(f) → a6
9. Textfield(g) → a7
10. Textfield(h) → a8
11. Textfield(i) → a9
12. Line(A, B) → l
13. Rotate(A, ((-j) * π / 180), B) → A'
14. Ray(B, A') → m
15. Angle(A', B, A) → α
16. Ray(B, A) → n
17. Rotate(A', ((-k) * π / 180), B) → A''
18. Ray(B, A'') → p
19. Angle(A'', B, A') → β
20. Ray(D, C') → r
21. Rotate(C', ((-((10 * h) + i)) * π / 180), D) → C''
22. Ray(D, C'') → s
23. Angle(C', D, C) → γ
24. Angle(C', D, C'') → δ
25. Mode(l1) → l2
26. Line(E, m) → t
27. Point(t) → F
28. Rotate(F, (-β), E) → F'
29. Ray(E, F') → f_1
30. Angle(F, E, F') → ε
31. Ray(E, F) → g_1
32. Point(l_1) → G
33. Line(G, r) → h_1
34. Line(G, s) → i_1
35. Point(h_1) → H
36. Rotate(H, ((-((10 * h) + i)) * π / 180), G) → H'
37. Angle(H', G, H) → ζ
38. Ray(G, H) → k_1
39. Line(G, H') → j_1
40. Point(j_1) → I
41. Point(l_1) → J
42. Angle(I, G, J) → η
43. Line(D, C) → q
44. If(Length[l2] ≟ 0, "No digits repeat.", "Repeated digits exist.") → text2