直角三角形全等

GeoGebra 命令及参数

1. Point(Circle[A, a]) → B
2. Segment(A, B) → f
3. Rotate(A, (-(90°)), B) → A'
4. Angle(A', B, A) → α
5. Ray(B, A') → g_1
6. Point(g_1) → C
7. Segment(B, C) → g
8. Segment(A, C) → h
9. Point(Circle[D, f]) → E
10. Segment(D, E) → i
11. Rotate(D, (-(90°)), E) → D'
12. Angle(D', E, D) → β
13. Ray(E, D') → j
14. Circle(D, h) → c
15. Intersect(c, j, 1) → F
16. Segment(D, F) → k
17. Segment(E, F) → l
18. Angle(B, A, C) → γ
19. Angle(E, D, F) → δ
20. Angle(A, C, B) → ε
21. Angle(D, F, E) → ζ