G_6.03 特殊平行四边形

GeoGebra 命令及参数

1. Segment(A, B) → f
2. OrthogonalLine(A, f) → g
3. OrthogonalLine(B, f) → h
4. Point(g) → C
5. OrthogonalLine(C, g) → i
6. Intersect(h, i) → D
7. Polygon(D, B, A, C) → q1, d, b, a, c
8. Segment(E, F) → j
9. Segment(F, G) → k
10. Line(G, j) → l
11. Line(E, k) → m
12. Intersect(l, m) → H
13. Polygon(E, F, G, H) → q2, e, f_1, g_1, h_1
14. Segment(I, J) → n
15. Midpoint(J, I) → K
16. Circle(K, L) → p
17. Segment(K, L) → q
18. Line(L, K) → r
19. Intersect(p, r, 2) → M
20. Polygon(M, I, L, J) → q3, m_1, i_1, l_1, j_1
21. Segment(M, L) → s
22. Segment(N, O) → t
23. Midpoint(N, O) → P
24. Circle(P, N) → c_1
25. Point(c_1) → Q
26. Line(P, Q) → k_1
27. Intersect(c_1, k_1, 2) → R
28. Polygon(N, Q, O, R) → q4, n_1, q_1, o, r_1
29. Segment(R, Q) → p_1
30. Angle(A, B, D) → parA1
31. Angle(B, D, C) → parA2
32. Angle(D, C, A) → parA3
33. Angle(C, A, B) → parA4
34. Angle(H, E, F) → parB1
35. Angle(E, F, G) → parB2
36. Angle(F, G, H) → parB3
37. Angle(G, H, E) → parB4
38. Angle(J, M, I) → parC1
39. Angle(M, I, L) → parC2
40. Angle(I, L, J) → parC3
41. Angle(L, J, M) → parC4
42. Angle(R, N, Q) → parD1
43. Angle(N, Q, O) → parD2
44. Angle(Q, O, R) → parD3
45. Angle(O, R, N) → parD4