全等三角形探索 by Irina Boyadzhiev

GeoGebra 命令及参数

1. Semicircle(A, C) → g
2. Point(g) → V
3. Point(g) → U
4. Point(g) → T
5. CircumcircleArc(T, U, V) → t
6. Polygon(A, C, B) → poly2, f, d, e
7. Angle(C, A, B) → α
8. Angle(A, B, C) → β
9. Angle(B, C, A) → γ
10. Point(Circle[A_1, d1]) → B_1
11. Segment(A_1, B_1) → a
12. Point(Circle[C_1, d2]) → H
13. Segment(C_1, H) → b
14. Point(Circle[G, d3]) → I
15. Segment(G, I) → c
16. Rotate(J, α, K) → J'
17. Angle(J, K, J') → aa
18. Rotate(L, β, M) → L'
19. Angle(L, M, L') → bb
20. Rotate(N, (-γ), O) → N'
21. Angle(N, O, N') → γγ
22. Point(Ray[K, J']) → J2
23. Point(Ray[M, L']) → L2
24. Vector(M, L2) → u
25. Vector(K, J2) → j
26. Vector(K, J) → i
27. Vector(M, L) → m
28. Vector(O, N) → l
29. Point(Ray[O, N']) → N2
30. Vector(O, N2) → k
31. Circle(C_1, d2) → circleH
32. Circle(G, d3) → circleI
33. Circle(A_1, d1) → circleB
34. Semicircle(A_1, B_1) → h