全等三角形探索 by D Shea

GeoGebra 命令及参数

1. Point(Circle[A, abs(side_'AB)]) → B
2. Segment(A, B) → AB
3. Rotate(B, angle_'CAB, A) → D
4. Angle(B, A, D) → CAB
5. Rotate(A, (-angle_'ABC'), B) → D'
6. Angle(D', B, A) → ABC
7. Segment(A, D) → AC_2
8. Segment(B, D') → AC'
9. Ray(B, D') → d
10. Circle(B, side_'BC') → e
11. Intersect(e, d, 1) → C'
12. Segment(B, C') → BC'
13. Ray(A, D) → f
14. Circle(A, side_'AC) → g
15. Intersect(g, f, 1) → C
16. Segment(A, C) → AC
17. Point(Circle[X, abs(side_'XY)]) → Y
18. Segment(X, Y) → XY
19. Rotate(X, (-angle_'XYZ), Y) → E'
20. Angle(E', Y, X) → XYZ
21. Rotate(Y, angle_'ZXY, X) → F'
22. Angle(Y, X, F') → ZYX
23. Ray(X, F') → b
24. Ray(Y, E') → h
25. Circle(X, side_'XZ) → k
26. Intersect(k, b, 1) → Z
27. Segment(X, Z) → XZ
28. Circle(Y, side_'YZ') → p
29. Intersect(p, h, 1) → Z'
30. Segment(Y, Z') → YZ'