SAS定理快速探索：通过旋转与相交验证三角形全等

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Rotate(B, α, A) → B'
3. Ray(A, B') → g
4. Point(g) → C
5. Segment(A, C) → h
6. Circle(A, (0.4 * Min[f, h])) → c
7. Intersect(c, f, 1) → D
8. Intersect(c, h, 1) → E
9. CircleSector(A, D, E) → d
10. Segment(C, B) → i
11. Point(Circle[F, f]) → G
12. Segment(F, G) → j
13. Rotate(G, α, F) → G'
14. Ray(F, G') → k
15. Circle(F, h) → e
16. Intersect(e, k, 1) → H
17. Segment(F, H) → l
18. Circle(F, (0.4 * Min[f, h])) → p
19. Intersect(p, l, 1) → I
20. Intersect(p, j, 1) → J
21. CircleSector(F, J, I) → q
22. Segment(G, H) → m
23. Polygon(C, A, B) → t1, b, c_1, a