变换练习3：图形变换

GeoGebra 命令及参数

1. Line(A, B) → f
2. Ray(A, B) → g
3. Point(f) → P
4. Point(f) → Q
5. Polygon(A, B, n) → poly1, h, C, D, E, F, H, I, J, i, j, k, l, m, p, q, r
6. Rotate(poly1, α, G) → poly1'
7. Vertex(poly1') → K, L, M, N, O, R, K_1, K_2, K_3
8. Segment(M, L) → s
9. Segment(L, K) → t
10. Segment(K, R) → a
11. Segment(R, O) → b
12. Segment(O, N) → c
13. Segment(N, M) → d
14. Segment(N, K) → e
15. Segment(M, K) → f_1
16. Segment(K, O) → g_1
17. Segment(R, K_1) → h_1
18. Segment(K_1, K) → i_1
19. Segment(K_1, K_2) → j_1
20. Segment(K_2, K) → k_1
21. Segment(K_2, K_3) → l_1
22. Segment(K_3, K) → m_1