梯形构造器 by Melanie Palma

GeoGebra 命令及参数

1. Line(P, A) → a
2. Line(E, a) → b
3. Segment(A, P) → g
4. Point(b) → T
5. Point(b) → R
6. Segment(T, R) → c
7. Segment(P, T) → d
8. Segment(R, A) → e
9. Angle(A, P, T) → α
10. Angle(P, T, R) → β
11. Angle(T, R, A) → γ
12. Angle(R, A, P) → δ
13. Line(L, C) → a_1
14. Line(E_1, a_1) → b_1
15. Segment(C, L) → g_1
16. Point(b_1) → I
17. Segment(L, I) → d_1
18. Angle(C, L, I) → α_1
19. Rotate(L, (-α_1), C) → B
20. Angle(B, C, L) → ε
21. Segment(C, B) → f
22. Intersect(b_1, f) → S
23. Segment(C, S) → h
24. Segment(I, S) → i
25. Angle(C, S, I) → ζ
26. Angle(S, I, L) → η
27. Segment(P, R) → diag_1
28. Segment(T, A) → diag_2
29. Intersect(diag_1, diag_2) → D
30. Segment(T, D) → diag_2a
31. Segment(D, A) → diag_2b
32. Segment(R, D) → diag_1a
33. Segment(D, P) → diag_1b