Yatko猜想D的GeoGebra演示

GeoGebra 命令及参数

1. Circle(A, b) → c
2. Point(c) → B
3. Point(c) → C
4. Point(c) → D
5. Segment(C, D) → f
6. Segment(B, C) → g
7. Segment(B, D) → h
8. Polygon(C, B, a) → poly1, i, m_1, E, F, G, H, I, J, Q, R, j, k, l, m, n, p, q, l_1
9. Polygon(B, D, a) → poly2, r, p_1, K, L, M, N, O, P, S, T, s, t, d, e, f_1, g_1, h_1, n_1
10. Segment(J, M) → k_1
11. Segment(R, N) → q_1
12. Midpoint(M, L) → V
13. Polygon(C, B, D) → t1, d_1, c_1, b_1
14. PointIn(t1) → Pointt1
15. Segment(I, V) → s_1
16. Midpoint(G, H) → C_1
17. Segment(K, C_1) → g_2
18. Centroid(poly1) → F_1
19. Centroid(poly2) → G_1
20. PointIn(poly1) → Pointpoly1_{1}
21. PointIn(poly2) → Pointpoly2_{1}
22. PointIn(poly1) → Pointpoly1
23. PointIn(poly2) → Pointpoly2
24. Angle(B, C_1, G) → α
25. Angle(B, V, L) → β
26. Segment(F, K) → i_1
27. Segment(L, C) → j_1
28. Segment(E, D) → r_1
29. Angle(F, E, D) → γ
30. Angle(B, L, K) → δ