SSA条件下的三角形构造

GeoGebra 命令及参数

1. Polygon(A, B, C) → poly1, c, a, b
2. Point(b) → G
3. Point(a) → H
4. Angle(A, B, C) → γ
5. Angle(B, C, A) → δ
6. Angle(C, A, B) → ε
7. Circle(B', Segment[A, B]) → d
8. Point(d) → A'
9. Circle(B', Segment[C, B]) → e
10. Point(e) → C'
11. Segment(B', C') → f
12. Segment(B', A') → g
13. Intersect(d, f, 1) → I
14. CircleArc(B', A', I) → h
15. Circle(C', Segment[H, C]) → k
16. Circle(C', Segment[G, C]) → p
17. Intersect(k, f, 1) → D
18. Circle(D, Segment[H, G]) → q
19. Intersect(p, q, 1) → E
20. Ray(C', E) → i
21. Point(i) → F
22. Segment(F, C') → j
23. Angle(A', B', C') → β
24. Angle(B', C', F) → ζ
25. Angle(C', F, B') → η