构造相似三角形 by Arthur Lee

GeoGebra 命令及参数

1. Polygon(A, B, C) → poly1, c, a, b
2. Mirror(C, c) → C'
3. Mirror(A, a) → A'
4. Mirror(B, b) → B'
5. SimTri(A, B, C', P, Q) → z_1
6. SimTri(A, C, B, P, Q) → z_2
7. SimTri(A, C, B', P, Q) → z_3
8. SimTri(B, C, A, P, Q) → z_4
9. SimTri(B, C, A', P, Q) → z_5
10. SimTri(B, A, C, P, Q) → z_6
11. SimTri(B, A, C', P, Q) → z_7
12. SimTri(C, A, B, P, Q) → z_8
13. SimTri(C, A, B', P, Q) → z_9
14. SimTri(C, B, A, P, Q) → z_{10}
15. SimTri(C, B, A', P, Q) → z_{11}
16. Polygon(P, Q, R) → poly2, r, p, q
17. Angle(poly1) → α, β, γ
18. Angle(poly2) → δ, ε, ζ
19. Distance(R, z) → d0
20. Distance(R, z_1) → d1
21. Distance(R, z_2) → d2
22. Distance(R, z_3) → d3
23. Distance(R, z_4) → d4
24. Distance(R, z_5) → d5
25. Distance(R, z_6) → d6
26. Distance(R, z_7) → d7
27. Distance(R, z_8) → d8
28. Distance(R, z_9) → d9
29. Distance(R, z_{10}) → d10
30. Distance(R, z_{11}) → d11