探索多边形的性质

GeoGebra 命令及参数

1. Polygon(A, B, C) → poly1, c_2, a_2, b_3
2. Angle(A, C, B) → α
3. Angle(C, B, A) → β
4. Angle(B, A, C) → γ
5. Polygon(D, E, F) → poly2, f_1, d_1, e_1
6. Ray(E, F) → g
7. Ray(F, D) → h
8. Ray(D, E) → i
9. Point(h) → G
10. Point(g) → H
11. Point(i) → I
12. Angle(H, F, D) → ε
13. Angle(G, D, E) → ζ
14. Angle(I, E, F) → η
15. Polygon(J, K, L, M) → poly3, j, k, l, m
16. Ray(J, M) → n
17. Ray(M, L) → p
18. Ray(L, K) → q
19. Point(n) → N
20. Point(p) → O
21. Point(q) → P
22. Ray(K, J) → r
23. Angle(L, M, N) → μ
24. Angle(J, K, P) → ν
25. Point(r) → Q
26. Angle(M, J, Q) → ξ
27. Angle(K, L, O) → ο
28. Polygon(R, S, T, U) → poly4, r_1, s, t, u
29. Angle(poly4) → θ, ι, κ, λ
30. Segment(W, V) → a_1
31. Segment(Z, A_1) → b_1
32. Polygon(B_1, C_1, D_1, E_1) → poly5, b_2, c_1, d_2, e_2
33. Polygon(J_1, K_1, L_1, M_1) → poly6, j_1, k_1, l_1, m_1